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Stall buffet encountered at FL370 after attempt at rapid climb, allowing a speed deviation decay to occur. Reporter error admitted.
| Attributes | |
| ACN | 303747 |
| Time | |
| Date | 199505 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : bna |
| State Reference | TN |
| Altitude | msl bound lower : 36000 msl bound upper : 37000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer pilot : commercial |
| Experience | flight time last 90 days : 160 flight time total : 15000 flight time type : 1500 |
| ASRS Report | 303747 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance non adherence : published procedure other anomaly other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : exited adverse environment other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
After leveling at FL310, center cleared us to climb to FL370, then asked us to do it in 4 mins or less. Speed decayed at level off at FL370 until buffet was felt. We required lower and started a descent to FL360 to regain airspeed, no apparent conflict resulted. We were able to gain speed and again climbed to FL370. My allowing speed to decay while trying to meet time constraint was cause of event.
Original NASA ASRS Text
Title: STALL BUFFET ENCOUNTERED AT FL370 AFTER ATTEMPT AT RAPID CLB, ALLOWING A SPD DEV DECAY TO OCCUR. RPTR ERROR ADMITTED.
Narrative: AFTER LEVELING AT FL310, CTR CLRED US TO CLB TO FL370, THEN ASKED US TO DO IT IN 4 MINS OR LESS. SPD DECAYED AT LEVEL OFF AT FL370 UNTIL BUFFET WAS FELT. WE REQUIRED LOWER AND STARTED A DSCNT TO FL360 TO REGAIN AIRSPD, NO APPARENT CONFLICT RESULTED. WE WERE ABLE TO GAIN SPD AND AGAIN CLBED TO FL370. MY ALLOWING SPD TO DECAY WHILE TRYING TO MEET TIME CONSTRAINT WAS CAUSE OF EVENT.
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.