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Air carrier widebody transport altitude deviation undershot altitude crossing restriction during descent.
| Attributes | |
| ACN | 95787 |
| Time | |
| Date | 198810 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : pnm |
| State Reference | MI |
| Altitude | msl bound lower : 31000 msl bound upper : 33000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zau |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time total : 17000 |
| ASRS Report | 95787 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : atp |
| Events | |
| Anomaly | altitude deviation : undershoot altitude deviation : crossing restriction not met non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : insufficient time |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Cruising at 39000', given clearance to cross 70 NM northeast of pmm at 31000'. I programmed FMC, then attention was distracted by logbook maintenance items, F/a cabin problems and non-essential cockpit conversation. Airplane did not start descent at appropriate time and we missed restriction by approximately 2000'. Solution would be better crew coordination (some personality conflicts occurred) and elimination of non-essential conversation at critical phases of flight. In this case it won't happen again.
Original NASA ASRS Text
Title: ACR WDB ALT DEVIATION UNDERSHOT ALT CROSSING RESTRICTION DURING DESCENT.
Narrative: CRUISING AT 39000', GIVEN CLRNC TO CROSS 70 NM NE OF PMM AT 31000'. I PROGRAMMED FMC, THEN ATTN WAS DISTRACTED BY LOGBOOK MAINT ITEMS, F/A CABIN PROBS AND NON-ESSENTIAL COCKPIT CONVERSATION. AIRPLANE DID NOT START DSCNT AT APPROPRIATE TIME AND WE MISSED RESTRICTION BY APPROX 2000'. SOLUTION WOULD BE BETTER CREW COORD (SOME PERSONALITY CONFLICTS OCCURRED) AND ELIMINATION OF NON-ESSENTIAL CONVERSATION AT CRITICAL PHASES OF FLT. IN THIS CASE IT WON'T HAPPEN AGAIN.
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.