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Flight crew of an large transport exceeded the MEL altitude restr due to dispatcher not knowing that there was a restr due to one of the pressurization packs shown as 'inoperative,' but not with an altitude restr shown.
| Attributes | |
| ACN | 336537 |
| Time | |
| Date | 199605 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : atl |
| State Reference | GA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : preflight |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel |
| Qualification | other |
| ASRS Report | 336537 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : far non adherence : published procedure other anomaly other |
| Independent Detector | other other : unspecified |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
I did not catch altitude restr for a MEL. I am used to looking for an MEL reference number for pack inoperative or flight level restr -- not a worded reference to inoperative pack. According to a dispatcher who had the airplane before and after me, the pack physically worked ok, but maintenance had to defer it. Contributing factor to my missing the restr were the distrs of working an unfamiliar desk (I am a relief/rotating dispatcher) and constant revisions of releases due to weight (cargo) additions. Corrective action: any restr should be spelled out or xrefed by MEL number to MEL with restr.
Original NASA ASRS Text
Title: FLC OF AN LGT EXCEEDED THE MEL ALT RESTR DUE TO DISPATCHER NOT KNOWING THAT THERE WAS A RESTR DUE TO ONE OF THE PRESSURIZATION PACKS SHOWN AS 'INOP,' BUT NOT WITH AN ALT RESTR SHOWN.
Narrative: I DID NOT CATCH ALT RESTR FOR A MEL. I AM USED TO LOOKING FOR AN MEL REF NUMBER FOR PACK INOP OR FLT LEVEL RESTR -- NOT A WORDED REF TO INOP PACK. ACCORDING TO A DISPATCHER WHO HAD THE AIRPLANE BEFORE AND AFTER ME, THE PACK PHYSICALLY WORKED OK, BUT MAINT HAD TO DEFER IT. CONTRIBUTING FACTOR TO MY MISSING THE RESTR WERE THE DISTRS OF WORKING AN UNFAMILIAR DESK (I AM A RELIEF/ROTATING DISPATCHER) AND CONSTANT REVISIONS OF RELEASES DUE TO WT (CARGO) ADDITIONS. CORRECTIVE ACTION: ANY RESTR SHOULD BE SPELLED OUT OR XREFED BY MEL NUMBER TO MEL WITH RESTR.
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.