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Charter light transport altitude deviation excursion from clearance altitude. Flight crew accepted amended clearance altitude assignment after engine flame out at FL430 but were unable to hold the assigned altitude.
| Attributes | |
| ACN | 96913 |
| Time | |
| Date | 198810 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : fmy |
| State Reference | FL |
| Altitude | msl bound lower : 34500 msl bound upper : 35000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zjx |
| Operator | general aviation : instructional |
| Make Model Name | Light Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | descent other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : cfi pilot : instrument |
| Experience | flight time last 90 days : 300 flight time total : 2900 flight time type : 400 |
| ASRS Report | 96913 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 300 flight time total : 3500 flight time type : 800 |
| ASRS Report | 97141 |
| Events | |
| Anomaly | aircraft equipment problem : critical altitude deviation : excursion from assigned altitude |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : declared emergency |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Departed fmy for lan on an air ambulance flight. Final altitude filed for was FL430. We were cleared to climb to FL430 and given a vector for direct lan. Climbing through FL420 for FL430 the left engine flamed out. We requested a lower altitude of FL240. The controller gave us an altitude of FL350 and said if we needed lower he would give us a vector. We accepted FL350 on course, believing we were clear of traffic. As we leveled off at FL350 the airspeed continued to bleed off. The captain instructed me to request a lower altitude. Due to congestion on the frequency it was approximately 30 seconds before I could make contact with a controller. I requested lower, but the controller said to maintain FL350. I then told the controller we had to descend and we would take a vector. By this point we had slipped 400' below our assigned altitude. The controller instructed us to squawk 7700 and gave us a vector for traffic avoidance. We continued our descent to a lower altitude and completed a successful restart. We accepted FL350 on course because we believed that we would be cleared to a lower altitude before reaching FL350. Supplemental information from acn 97141: center offered vector or on course. Requested on course. Engine successfully restated at 19000'. Center issued clearance to climb and continue on course.
Original NASA ASRS Text
Title: CHARTER LTT ALT DEVIATION EXCURSION FROM CLRNC ALT. FLT CREW ACCEPTED AMENDED CLRNC ALT ASSIGNMENT AFTER ENGINE FLAME OUT AT FL430 BUT WERE UNABLE TO HOLD THE ASSIGNED ALT.
Narrative: DEPARTED FMY FOR LAN ON AN AIR AMBULANCE FLT. FINAL ALT FILED FOR WAS FL430. WE WERE CLRED TO CLB TO FL430 AND GIVEN A VECTOR FOR DIRECT LAN. CLBING THROUGH FL420 FOR FL430 THE LEFT ENG FLAMED OUT. WE REQUESTED A LOWER ALT OF FL240. THE CTLR GAVE US AN ALT OF FL350 AND SAID IF WE NEEDED LOWER HE WOULD GIVE US A VECTOR. WE ACCEPTED FL350 ON COURSE, BELIEVING WE WERE CLR OF TFC. AS WE LEVELED OFF AT FL350 THE AIRSPD CONTINUED TO BLEED OFF. THE CAPT INSTRUCTED ME TO REQUEST A LOWER ALT. DUE TO CONGESTION ON THE FREQ IT WAS APPROX 30 SECS BEFORE I COULD MAKE CONTACT WITH A CTLR. I REQUESTED LOWER, BUT THE CTLR SAID TO MAINTAIN FL350. I THEN TOLD THE CTLR WE HAD TO DSND AND WE WOULD TAKE A VECTOR. BY THIS POINT WE HAD SLIPPED 400' BELOW OUR ASSIGNED ALT. THE CTLR INSTRUCTED US TO SQUAWK 7700 AND GAVE US A VECTOR FOR TFC AVOIDANCE. WE CONTINUED OUR DSCNT TO A LOWER ALT AND COMPLETED A SUCCESSFUL RESTART. WE ACCEPTED FL350 ON COURSE BECAUSE WE BELIEVED THAT WE WOULD BE CLRED TO A LOWER ALT BEFORE REACHING FL350. SUPPLEMENTAL INFO FROM ACN 97141: CENTER OFFERED VECTOR OR ON COURSE. REQUESTED ON COURSE. ENG SUCCESSFULLY RESTATED AT 19000'. CENTER ISSUED CLRNC TO CLB AND CONTINUE ON COURSE.
Data retrieved from NASA's ASRS site as of August 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.