USAir Flight 1016 was a regularly scheduled flight between Columbia,
South Carolina and Charlotte, North Carolina. On Saturday, July 2, 1994,
the plane, a McDonnell Douglas DC-9 registered N954VJ, departed Columbia
Metropolitan Airport at 18:15 EST for the 35 minute flight to Charlotte/Douglas
International Airport. On board, there were 52 passengers (including
two infants), 3 flight attendants,and two pilots. The flight was uneventful
until the approach to Charlotte, where several heavy thunderstorms were
in the vicinity of the airport. The flight was cleared by the tower
to land on runway 18R. The plane, under control by the first officer,
was approaching the runway in heavy rain conditions. The tower controller
issued a windshear warning to all aircraft, but it was on a different
radio frequency than Flight 1016.
About a minute later, as flight 1016 was on final approach, the captain,
realizing that they were in a serious predicament, instructed the first
officer to 'Take it around, go to the right'. He then radioed the control
tower and stated 'USAIR ten sixteen's on the go'. The plane struggled
to climb due to the severe weather conditions, and immediately veered
to the right and began to rapidly descend. The flight crew desperately
tried to control the airplane as it plummeted toward the ground.
At 18:43 EST, the DC-9 touched down into a field within the airport
boundary, about 1/2 mile from the threshold of runway 18R. It then crashed
through the airport fence and impacted several trees, breaking apart
while skidding down a residential street that was on the airport boundary.
The plane broke into four major sections, the front 40 feet of the airplane,
including the cockpit and the unoccupied first class passenger cabin,
came to rest in the middle of Wallace Neel Road. The rear section of
the fuselage, including the tail and the rear mounted engines, came
to rest in the carport of a house.
Transcript of the Cockpit Voice Recorder (CVR)
US1016: Radio transmission from the flight
CAPT: Captain cockpit communication
FO: First officer cockpit communication
APPR: Charlotte Approach Control
TWR: Charlotte Tower
18:36:59 APPR: "Tell you what, USAir 1016, may get some rain just
south of the field. Might be a little bit just coming off the north.
Just expect the ILS now. Amend your altitude...maintain 3,000."
18:39:02 CAPT: "If we have to bail out.... (unreadable)"
18:39:06 CAPT: "It looks like we bail out to the right."
18:39:09 FO: "Amen."
18:39:09 CAPT: "Ten miles to the VOR which is off the end of the
runway. 'Bout a mile off the end of the runway."
18:39:14 FO: "Yeah."
18:39:16 CAPT: "So I think we'll be all right."
18:39:20 CAPT: "Chance of shear."
(The dialog in italics occurred on the tower frequency before USAir
1016 switched over at 18:39:30.)
18:39:12 US806 (on the ground, waiting to depart from Charlotte):
"And 806, looks like we've gotten a storm right on top of the field
18:39:16 TWR: "USAir 806, affirmative."
18:39:20 US806: "We'll just delay for a while."
18:39:44 TWR: "...Charlotte Tower, Runway 18 Right, cleared to land.
Following an F[okker] 100 (an airliner about the same size as a DC-9)
on short final. Previous arrival reported a smooth ride all the way
18:39:49 US1016: "USAir 1016, I'd appreciate a pirep from the guy
in front of us."
18:40:10 FO: "Yep, laying right there this side of the airport, isn't
18:40:14 CAPT: "Well."
18:40:15 FO: "The edge of the rain is, I'd say."
18:40:15 CAPT: "Yeah."
18:40:42 TWR: "USAir 1016, company FK 100 just exited the runway,
sir; he said smooth ride."
18:40:48 TWR: "USAir 916, wind is showing 100 at 19."
18:40:56 FO: "One hundred at 19, eh?"
18:40:59 TWR: "USAir 1016, wind now 110 at 21."
18:41:05 CAPT: "Stay heads up."
18:41:06 TWR: "Wind shear alert, northeast boundary winds 190 at
18:41:18 TWR: "Carolina 5211, Charlotte Tower, runway 18R, cleared
to land, wind 100 at 20. Wind shear alert, northeast boundary wind
190 at 17."
18:41:32 TWR: "USAir 806, you want to just sit tight for a minute,
18:41:35 US806: "Yes, sir, we'd like to just sit tight."
18:41:37 TWR: "USAir 797, company aircraft in front of you is going
to sit and wait a while, sir. Do you want to go in front of him?"
18:41:43 US797: "No, no, it wouldn't sound like a good plan. We'll,
uh, it didn't look like a whole lot to us on the radar taxiing out,
so it shouldn't be, uh, shouldn't be too many minutes."
18:41:54 CAPT: "Here comes the wipers."
18:41:56 FO: "All right."
18:41:57.6 (sound similar to rain concurrent with sound similar to
windshield wipers starts. The sound continues until impact)
18:41:58.9 FO: "There's, ooh, 10 knots right there."
18:42:06.4 CAPT: "OK, you're plus 20."
184.108.40.206 CAPT: "Take it around; go to the right."
18:42:16.1 US1016: "USAir 1016's on the go (the DC-9's altitude is
approximately 200 feet agl)."
18:42:17.7 CAPT: "Max power."
18:42:18.5 FO: "Yeah, max power.... "
18:42:18.5 TWR: "USAir 1016, understand you're on the go sir, fly
runway heading. Climb and maintain 3,000."
18:42:19.4 FO: "Flaps to 15 [degrees]."
18:42:20.8 (clicks similar to flap handle being moved)
18:42:22.0 CAPT: "Down, push it down."
18:42:25.5 US1016: "Up to three, we're takin' a right turn here."
18:42:27.9 TWR: "USAir 1016, understand you're turning right? (US1016's
altitude begins decreasing below 350 feet agl)."
18:42:28.4 ("Whoop whoop terrain" sound begins and continues to first
sound of impact)
18:42:28.5 CAPT?: " – power."
18:42:32.7 (vibrating sound similar to aircraft stick shaker begins)
18:42:35.6 (sound of impact)
The NTSB determined the probable cause to be the flight crew's decision
to continue an approach into weather conducive to a microburst, the
crew's failure to recognize a wind shear situation in a timely manner,
its failure to establish and maintain the attitude and thrust necessary
to escape the wind shear, and the lack of real-time adverse weather
and wind shear hazard information dissemination from air traffic control.
Several aircraft on the ground delayed takeoff despite the pirep
of a smooth ride from the Fokker 100. When the tower issued the wind
shear alert at 18:41:18, it was probably time to abandon the approach.
The crew was focused on landing, but the weather was changing rapidly
as the runway visual range dropped to 500 feet in heavy rain. It was
determined later that there was a microburst one mile east of the
approach end of 18R, with maximum winds of 50 knots. The net wind
change was calculated at 86 knots during the DC-9's missed approach.
The flight crew's coordination could have been better, and the investigation
concluded that the flight could have survived this wind shear encounter
if several factors had been different:
The crew's adherence to the wind shear escape procedure could have saved
the day, but the margins would have been razor thin and dependent on doing
it all exactly right. The best decision would have been to delay the landing.
Thunderstorms mutate rapidly; and even with a recent pirep, a minute or
two can make a huge difference.
- Maximum go-around power was not used. Approximately 2,000 more
pounds of thrust were available. The first officer used the missed
approach procedure instead of the wind shear recovery profile.
- Missed approach calls for max normal power, a maximum 15-degree
nose-up attitude, flaps retracted to 15 degrees, and gear up. The
wind shear profile mandates full throttle, 15 degrees nose up initially
followed by two-degree increases as needed to stick shaker, and
the aircraft is left in its current configuration (gear and flaps
down in this case).
- The captain may have experienced vestibular illusion that gave
him a false sense of the aircraft's being over-rotated to an abnormally
steep pitch attitude. This is caused by the strong acceleration
of the aircraft and must be overcome by reference to the flight
instruments. The first officer, who was flying, was on the gauges
and situationally focused. The captain was not, which led him to
call for a reduction in pitch attitude.
- The tower was cited for not reporting observed lightning to the
aircraft and for failure to mention the rapidly diminishing visibility
in heavy rain and other multiple low-level wind shear alerts.
Light aircraft seem to have fewer encounters with wind shear for two
reasons: They are able to adapt to changing wind conditions more rapidly
because there is less inertia to overcome than with a heavier aircraft;
and they probably don't spend as much time as do airliners near potentially
The Beech A36 Bonanza pilot was under self-induced pressure to start
on a July vacation. The passenger manifest included his three children
and a friend. At 5:37 a.m. the pilot called Wichita Flight Service,
requesting information for an IFR flight from Wichita's Colonel James
Jabara Airport to Colorado Springs, Colorado. There was an approaching
cold front, with most local stations reporting good VFR. But thunderstorms
According to the flight service specialist: "There is a severe thunderstorm
watch out north of your route for north central Kansas until 10 o'clock
this morning. The front is lying east of Grand Island through western
Kansas. Right now there is a pretty severe line of thunderstorm activity
ahead of the front. There is a convective sigmet running from Pawnee,
Nebraska, to Hays, Kansas, to 40 [miles] east of Garden City. A line
of thunderstorms 20 miles wide, moving east at 30 knots, tops to 45,000.
Looking at my live radar...it looks like you should be able to slide
around the southern edge, south of Dodge City, to get around that area.
Then once past, there is nothing on the radar all the way to Colorado."
The specialist then provided sequence reports, forecasts, and winds
aloft. The pilot filed an IFR flight plan for a proposed departure time
of 1400Z (9 a.m. local). It looked like a reasonable trip with some
minor deviations needed to get around the convective activity.
By 8:30 a.m. the thunderstorms were approaching east Wichita and Jabara
Airport. There were several witnesses who were pilots or line personnel
for the FBO. The Bonanza took off on Runway 18 and had just become airborne
when a strong northerly gust front arrived at the airport. The aircraft
reached a maximum altitude of 50 to 75 feet, pitching and banking severely.
One of the pilot witnesses said the nose pitched up and the left wing
dropped as if the airplane were going to enter a spin. The engine sounded
as though it was producing full power, and the aircraft descended to
the ground without spinning, left wing low. There were four fatalities
and one serious injury.
National Weather Service Doppler radar measured a level-six cell and
changes in wind magnitude of nearly 90 knots in the vicinity of the
airport. At 7:50 a.m., Jabara was reporting winds of 120 degrees at
14 knots. At 8:35, just a few minutes after the accident, the winds
were from 320 degrees at 51, gusting to 58 knots.
With full fuel, five passengers, and more than 300 pounds of camping
gear on board, the Bonanza was 184 pounds above maximum takeoff weight
and the center of gravity was just slightly behind the aft limit. This
translated into marginal climb performance and potential instability
,even under the best of circumstances. Being overtaken from behind by
a 60-knot gust of wind was the coup de grace.
The pilot was reputed to be cautious, with nearly 1,000 hours in the
Bonanza. He had attended safety seminars that included information on
the hazards of thunderstorms. One of the witnesses stated, "I could
not believe that anyone could be trying to take off at that moment."
The only rational explanation is that frequently the weather looks good
away from the storm and there is a temptation to make a run for it.
According to the radar plot, the flight could have proceeded south and
been out of danger in a few minutes. However, that action needed to
be taken before the storm got within 20 miles of the airport.
The common lesson in both of these accidents is that patience is needed
when dealing with thunderstorms. A cell on or near the airport – not
the wishful thinking of pilots in a hurry – controls arrivals and departures.
In most cases, 30 minutes will make the difference between an uneventful
ride and a potentially fatal one.