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A cpr flight crew in an light transport climb above their optimum altitude and stall the aircraft. During the recovery they leave their assigned altitude without a clearance. They declared an emergency after the controller's prompting.
| Attributes | |
| ACN | 365224 |
| Time | |
| Date | 199703 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : sav |
| State Reference | GA |
| Altitude | msl bound lower : 45000 msl bound upper : 45000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zjx |
| Operator | general aviation : corporate |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | Other Other |
| Flight Phase | cruise other cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : cfi pilot : instrument |
| Experience | flight time last 90 days : 45 flight time total : 1900 flight time type : 65 |
| ASRS Report | 365224 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance non adherence : far non adherence : published procedure other anomaly other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : regained aircraft control other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
The captain wanted to climb to FL510. I didn't want to, but could come up with no reason that would convince the captain not to climb to FL510. We were given clearance to climb to FL510. Around FL450 the climb rate is almost zero. I suggest we are too heavy and probably should stay at FL450. The captain said we would make it. Upon reaching FL510, the captain says he is going to pull the power back to cruise. Under the current conditions, cruise power is not enough to maintain altitude and airspeed. Airspeed decreased to the point of stick shaker and we depart FL510 without clearance. Prior to the stall, I requested a lower altitude as per the captain's request and ATC said it would be a few mins. By this time we had left FL510 and I informed ATC that we were out of FL510. He asked if we had an emergency that kept us from remaining at FL510. I replied 'yes sir.' the flight proceeded without further incident. I should have been more assertive and expressed my desire not to climb to FL510. Also, there was a curiosity and novelty involved with climbing to FL510 on my part. I should have suppressed this and done what I knew was safer and smarter. No passenger were on board.
Original NASA ASRS Text
Title: A CPR FLC IN AN LTT CLB ABOVE THEIR OPTIMUM ALT AND STALL THE ACFT. DURING THE RECOVERY THEY LEAVE THEIR ASSIGNED ALT WITHOUT A CLRNC. THEY DECLARED AN EMER AFTER THE CTLR'S PROMPTING.
Narrative: THE CAPT WANTED TO CLB TO FL510. I DIDN'T WANT TO, BUT COULD COME UP WITH NO REASON THAT WOULD CONVINCE THE CAPT NOT TO CLB TO FL510. WE WERE GIVEN CLRNC TO CLB TO FL510. AROUND FL450 THE CLB RATE IS ALMOST ZERO. I SUGGEST WE ARE TOO HVY AND PROBABLY SHOULD STAY AT FL450. THE CAPT SAID WE WOULD MAKE IT. UPON REACHING FL510, THE CAPT SAYS HE IS GOING TO PULL THE PWR BACK TO CRUISE. UNDER THE CURRENT CONDITIONS, CRUISE PWR IS NOT ENOUGH TO MAINTAIN ALT AND AIRSPD. AIRSPD DECREASED TO THE POINT OF STICK SHAKER AND WE DEPART FL510 WITHOUT CLRNC. PRIOR TO THE STALL, I REQUESTED A LOWER ALT AS PER THE CAPT'S REQUEST AND ATC SAID IT WOULD BE A FEW MINS. BY THIS TIME WE HAD LEFT FL510 AND I INFORMED ATC THAT WE WERE OUT OF FL510. HE ASKED IF WE HAD AN EMER THAT KEPT US FROM REMAINING AT FL510. I REPLIED 'YES SIR.' THE FLT PROCEEDED WITHOUT FURTHER INCIDENT. I SHOULD HAVE BEEN MORE ASSERTIVE AND EXPRESSED MY DESIRE NOT TO CLB TO FL510. ALSO, THERE WAS A CURIOSITY AND NOVELTY INVOLVED WITH CLBING TO FL510 ON MY PART. I SHOULD HAVE SUPPRESSED THIS AND DONE WHAT I KNEW WAS SAFER AND SMARTER. NO PAX WERE ON BOARD.
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.