37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 424504 |
Time | |
Date | 199812 |
Day | Wed |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | airport : grb |
State Reference | WI |
Altitude | agl bound lower : 0 agl bound upper : 0 |
Environment | |
Flight Conditions | VMC |
Light | Night |
Aircraft 1 | |
Operator | common carrier : air carrier |
Make Model Name | DC-9 50 |
Flight Phase | landing other |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Experience | flight time last 90 days : 150 flight time total : 4000 flight time type : 510 |
ASRS Report | 424504 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Experience | flight time last 90 days : 150 flight time total : 6900 |
ASRS Report | 424490 |
Events | |
Anomaly | other anomaly other |
Independent Detector | other flight crewa |
Resolutory Action | none taken : detected after the fact |
Consequence | other |
Supplementary | |
Air Traffic Incident | Pilot Deviation |
Narrative:
On final approach at 1000 ft we were fully configured and on speed (bug speed of 137 KTS). Below approximately 500 ft the captain got 5 KTS slow, so I made a call to that effect. He acknowledged. He sped up about 2-3 KTS. At roughly 100 ft, I again called out that he was slowing down, which he acknowledged. As we approached the flare, although 5 KTS slow and slightly nose high, it looked safe. In the flare he rotated back quickly and we had an immediate tail strike. It 'felt' funny, but we didn't realize it had been a tail strike as it wasn't a 'hard' landing. 2 deadhead airmen mid coach also didn't know. However, 2 flight attendants in the rear told me they suspected we had had one. On my walkaround, I discovered we had indeed struck the tail. I believe 3 things led to it: 1) the -50 tail strikes at a lower pitch attitude than other DC9's. 2) we were a little slow. 3) the abrupt flare and excessive back trim left no room for error. I didn't call for a go around as the approach didn't appear out of the safety margin until the last moment. It was the first time and the first leg I'd ever flown with this particular captain.
Original NASA ASRS Text
Title: CAPT OF A DC9-50 STRUCK THE TAILSKID DURING LNDG DUE TO FLARING TOO QUICKLY RESULTING IN AN EXCESSIVE NOSE HIGH ATTITUDE DURING TOUCHDOWN.
Narrative: ON FINAL APCH AT 1000 FT WE WERE FULLY CONFIGURED AND ON SPD (BUG SPD OF 137 KTS). BELOW APPROX 500 FT THE CAPT GOT 5 KTS SLOW, SO I MADE A CALL TO THAT EFFECT. HE ACKNOWLEDGED. HE SPED UP ABOUT 2-3 KTS. AT ROUGHLY 100 FT, I AGAIN CALLED OUT THAT HE WAS SLOWING DOWN, WHICH HE ACKNOWLEDGED. AS WE APCHED THE FLARE, ALTHOUGH 5 KTS SLOW AND SLIGHTLY NOSE HIGH, IT LOOKED SAFE. IN THE FLARE HE ROTATED BACK QUICKLY AND WE HAD AN IMMEDIATE TAIL STRIKE. IT 'FELT' FUNNY, BUT WE DIDN'T REALIZE IT HAD BEEN A TAIL STRIKE AS IT WASN'T A 'HARD' LNDG. 2 DEADHEAD AIRMEN MID COACH ALSO DIDN'T KNOW. HOWEVER, 2 FLT ATTENDANTS IN THE REAR TOLD ME THEY SUSPECTED WE HAD HAD ONE. ON MY WALKAROUND, I DISCOVERED WE HAD INDEED STRUCK THE TAIL. I BELIEVE 3 THINGS LED TO IT: 1) THE -50 TAIL STRIKES AT A LOWER PITCH ATTITUDE THAN OTHER DC9'S. 2) WE WERE A LITTLE SLOW. 3) THE ABRUPT FLARE AND EXCESSIVE BACK TRIM LEFT NO ROOM FOR ERROR. I DIDN'T CALL FOR A GAR AS THE APCH DIDN'T APPEAR OUT OF THE SAFETY MARGIN UNTIL THE LAST MOMENT. IT WAS THE FIRST TIME AND THE FIRST LEG I'D EVER FLOWN WITH THIS PARTICULAR CAPT.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.