<< >> NASA ASRS Report 592810, September 2003

A B737-400 was dispatched in non compliance with 2 deferred items on control panel lights per the MEL. Placards were incorrect and conflicting.

Attributes
ACN	592810
Time
Date	200309
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-400
Operating Under FAR Part	Part 121
Flight Phase	ground : preflight ground : parked ground : maintenance
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Person 2
ASRS Report	592810
Events
Anomaly	aircraft equipment problem : less severe maintenance problem : non compliance with mel non adherence : far non adherence : published procedure
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : non compliance with legal requirements performance deficiency : logbook entry
Supplementary
Problem Areas	Flight Crew Human Performance Maintenance Human Performance Chart Or Publication Aircraft
Primary Problem	Maintenance Human Performance

Narrative:

The MEL on this aircraft was very confusing and apparently incorrect. The write-up as I recall was that the light on the first officer's mcdu 1L line select key would not go out. All other functions regarding the FMC and ACARS worked fine. When we took delivery of the airplane, there were 2 MEL's associated with this problem. One regarding the ACARS and one regarding the mcdu light. However, the stickers were incorrectly labeled. I was told the stickers said navigation display map light. The logbook entries were correctly signed off and the daily was correctly completed. Apparently, the next crew discovered the MEL was incorrectly labeled and the logbook was corrected. A lot of confusion for a light bulb on the mcdu that would not extinguish.

Related reports:

• A saab 340A was dispatched and operated in 2 flight segments...
• Air carrier dispatched a B737-400 with a conflicting MEL whi...
• An airbus 320 was dispatched in non compliance with incorrec...
• A B737-500 was dispatched with door #1 right slide pressure ...
• An SF340 was dispatched with 2 conflicting deferred items. A...
• A B727-200 was dispatched in non compliance due to the wrong...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: A B737-400 WAS DISPATCHED IN NON COMPLIANCE WITH 2 DEFERRED ITEMS ON CTL PANEL LIGHTS PER THE MEL. PLACARDS WERE INCORRECT AND CONFLICTING.

Narrative: THE MEL ON THIS ACFT WAS VERY CONFUSING AND APPARENTLY INCORRECT. THE WRITE-UP AS I RECALL WAS THAT THE LIGHT ON THE FO'S MCDU 1L LINE SELECT KEY WOULD NOT GO OUT. ALL OTHER FUNCTIONS REGARDING THE FMC AND ACARS WORKED FINE. WHEN WE TOOK DELIVERY OF THE AIRPLANE, THERE WERE 2 MEL'S ASSOCIATED WITH THIS PROB. ONE REGARDING THE ACARS AND ONE REGARDING THE MCDU LIGHT. HOWEVER, THE STICKERS WERE INCORRECTLY LABELED. I WAS TOLD THE STICKERS SAID NAV DISPLAY MAP LIGHT. THE LOGBOOK ENTRIES WERE CORRECTLY SIGNED OFF AND THE DAILY WAS CORRECTLY COMPLETED. APPARENTLY, THE NEXT CREW DISCOVERED THE MEL WAS INCORRECTLY LABELED AND THE LOGBOOK WAS CORRECTED. A LOT OF CONFUSION FOR A LIGHT BULB ON THE MCDU THAT WOULD NOT EXTINGUISH.

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.