 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
B727 cleared to climb to FL280. Captain, PF, failed to engage altitude hold on the autoplt. He was concerned with the pulsations they were getting from the elevator channel of the autoplt. Got to FL284 and returned immediately to altitude.
| Attributes | |
| ACN | 360120 |
| Time | |
| Date | 199702 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : mrb |
| State Reference | WV |
| Altitude | msl bound lower : 28000 msl bound upper : 28440 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc tower : pbi |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 360120 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| ASRS Report | 360111 |
| Events | |
| Anomaly | aircraft equipment problem : less severe altitude deviation : overshoot non adherence : clearance non adherence : far |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : overcame equipment problem |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were cleared to FL280. First officer called FL280 for FL280 and I acknowledged. Approaching FL280 I checked the ONS for course and heading to the next fix. After this, instead of engaging altitude hold as I had intended, I asked the first officer a question about the pulsations we were getting from the elevator channel of the autoplt. Shortly thereafter, I heard the altitude warning at 28320 ft. I reversed the climb and returned to FL280. Highest altitude attained was 28440 ft. I was flying. When I distracted the first officer, at the same time the flight engineer had just been asked a question by a jump seat rider from another airline.
Original NASA ASRS Text
Title: B727 CLRED TO CLB TO FL280. CAPT, PF, FAILED TO ENGAGE ALT HOLD ON THE AUTOPLT. HE WAS CONCERNED WITH THE PULSATIONS THEY WERE GETTING FROM THE ELEVATOR CHANNEL OF THE AUTOPLT. GOT TO FL284 AND RETURNED IMMEDIATELY TO ALT.
Narrative: WE WERE CLRED TO FL280. FO CALLED FL280 FOR FL280 AND I ACKNOWLEDGED. APCHING FL280 I CHKED THE ONS FOR COURSE AND HDG TO THE NEXT FIX. AFTER THIS, INSTEAD OF ENGAGING ALT HOLD AS I HAD INTENDED, I ASKED THE FO A QUESTION ABOUT THE PULSATIONS WE WERE GETTING FROM THE ELEVATOR CHANNEL OF THE AUTOPLT. SHORTLY THEREAFTER, I HEARD THE ALT WARNING AT 28320 FT. I REVERSED THE CLB AND RETURNED TO FL280. HIGHEST ALT ATTAINED WAS 28440 FT. I WAS FLYING. WHEN I DISTRACTED THE FO, AT THE SAME TIME THE FE HAD JUST BEEN ASKED A QUESTION BY A JUMP SEAT RIDER FROM ANOTHER AIRLINE.
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.