 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
On descent to lax, ZLA challenges B767-400 flight crew for failure to reset to local altimeter passing through FL180 as assigned altitude is undershot by 250 ft.
| Attributes | |
| ACN | 509250 |
| Time | |
| Date | 200104 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : mqo.vortac |
| State Reference | CA |
| Altitude | msl single value : 16000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Flight Phase | climbout : intermediate altitude ground : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 138 flight time total : 11000 flight time type : 194 |
| ASRS Report | 509250 |
| Events | |
| Anomaly | altitude deviation : undershoot non adherence : published procedure non adherence : clearance |
| Resolutory Action | controller : issued advisory controller : issued new clearance flight crew : became reoriented flight crew : overrode automation flight crew : returned to assigned altitude |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On descent to lax with autoplt on, PF noticed 16240 ft, was indicated after intermediate altitude was changed from FL230 to 16000 ft by ATC. Correction was made back to 16000 ft with autoplt disconnected when ATC questioned altitude. No other aircraft in vicinity. Leveled aircraft at 16000 ft and flight continued uneventfully.
Original NASA ASRS Text
Title: ON DSCNT TO LAX, ZLA CHALLENGES B767-400 FLT CREW FOR FAILURE TO RESET TO LCL ALTIMETER PASSING THROUGH FL180 AS ASSIGNED ALT IS UNDERSHOT BY 250 FT.
Narrative: ON DSCNT TO LAX WITH AUTOPLT ON, PF NOTICED 16240 FT, WAS INDICATED AFTER INTERMEDIATE ALT WAS CHANGED FROM FL230 TO 16000 FT BY ATC. CORRECTION WAS MADE BACK TO 16000 FT WITH AUTOPLT DISCONNECTED WHEN ATC QUESTIONED ALT. NO OTHER ACFT IN VICINITY. LEVELED ACFT AT 16000 FT AND FLT CONTINUED UNEVENTFULLY.
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.