 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
B737-500 crew did not reset the altimeters at the transition level. This resulted in a 400 altitude undershoot when the aircraft leveled at cruise altitude.
| Attributes | |
| ACN | 566153 |
| Time | |
| Date | 200211 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : peq.vor |
| State Reference | TX |
| Altitude | msl bound lower : 32600 msl bound upper : 33000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zab.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-500 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 175 flight time total : 13400 flight time type : 6650 |
| ASRS Report | 566153 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 200 flight time total : 4200 flight time type : 1300 |
| ASRS Report | 566152 |
| Events | |
| Anomaly | altitude deviation : undershoot non adherence : far non adherence : published procedure non adherence : company policies |
| Independent Detector | atc equipment other atc equipment : radar other controllera |
| Resolutory Action | controller : issued advisory flight crew : returned to assigned altitude other |
| Consequence | other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
During cruise phase flight, ZAB called and said we were showing FL326. First officer was flying. We had both forgotten to set 29.92 while passing FL180. We reset altimeters and corrected back to FL330. ZAB had no conflict problem. In hindsight I think both of us were checking the FMC and discussing the intercept of J183 which was our clearance, when we passed fl 180 in the climb. We were distracted by the FMC duties. The only preventive measure would be more vigilance to the duties at hand by both pilots.
Original NASA ASRS Text
Title: B737-500 CREW DID NOT RESET THE ALTIMETERS AT THE TRANSITION LEVEL. THIS RESULTED IN A 400 ALT UNDERSHOOT WHEN THE ACFT LEVELED AT CRUISE ALT.
Narrative: DURING CRUISE PHASE FLT, ZAB CALLED AND SAID WE WERE SHOWING FL326. FO WAS FLYING. WE HAD BOTH FORGOTTEN TO SET 29.92 WHILE PASSING FL180. WE RESET ALTIMETERS AND CORRECTED BACK TO FL330. ZAB HAD NO CONFLICT PROBLEM. IN HINDSIGHT I THINK BOTH OF US WERE CHECKING THE FMC AND DISCUSSING THE INTERCEPT OF J183 WHICH WAS OUR CLRNC, WHEN WE PASSED FL 180 IN THE CLIMB. WE WERE DISTRACTED BY THE FMC DUTIES. THE ONLY PREVENTIVE MEASURE WOULD BE MORE VIGILANCE TO THE DUTIES AT HAND BY BOTH PLTS.
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.