<< >> NASA ASRS Report 446515, August 1999

A B727 was dispatched with the #2 generator deferred inoperative per the MEL with the restr that right pack not to be operated on the ground. Captain reports cabin very hot annoying passenger and crew.

Attributes
ACN	446515
Time
Date	199908
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : atl.airport
State Reference	GA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground : preflight ground : parked
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 120 flight time total : 11000 flight time type : 4000
ASRS Report	446515
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	aircraft equipment other aircraft equipment : #2 generator indications other flight crewa other flight crewb
Resolutory Action	none taken : anomaly accepted
Consequence	other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : repair
Supplementary
Problem Areas	Company Aircraft Maintenance Human Performance
Primary Problem	Aircraft

Narrative:

Aircraft was dispatched with #2 generator inoperative because CSD oil temperature reached 150 degrees. Write-up did not say how long or whether servicing was checked. Company just put it on mco. With this mco, right pack fan could not be used on ground and only in flight after flaps were retracted. Ambient temperatures were in the 90's and station ground air conditioning was limited. Additionally, both packs probably had dirty water separators because temperature could not be selected below 60 degrees F without packs surging. As a result, plane was hot. This not only annoyed passenger, but took its toll on flight crew during high temperature operations. Company has no clue about how its 'fly now, fix later' maintenance program is impacting safety.

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Original NASA ASRS Text

Title: A B727 WAS DISPATCHED WITH THE #2 GENERATOR DEFERRED INOP PER THE MEL WITH THE RESTR THAT R PACK NOT TO BE OPERATED ON THE GND. CAPT RPTS CABIN VERY HOT ANNOYING PAX AND CREW.

Narrative: ACFT WAS DISPATCHED WITH #2 GENERATOR INOP BECAUSE CSD OIL TEMP REACHED 150 DEGS. WRITE-UP DID NOT SAY HOW LONG OR WHETHER SVCING WAS CHKED. COMPANY JUST PUT IT ON MCO. WITH THIS MCO, R PACK FAN COULD NOT BE USED ON GND AND ONLY IN FLT AFTER FLAPS WERE RETRACTED. AMBIENT TEMPS WERE IN THE 90'S AND STATION GND AIR CONDITIONING WAS LIMITED. ADDITIONALLY, BOTH PACKS PROBABLY HAD DIRTY WATER SEPARATORS BECAUSE TEMP COULD NOT BE SELECTED BELOW 60 DEGS F WITHOUT PACKS SURGING. AS A RESULT, PLANE WAS HOT. THIS NOT ONLY ANNOYED PAX, BUT TOOK ITS TOLL ON FLC DURING HIGH TEMP OPS. COMPANY HAS NO CLUE ABOUT HOW ITS 'FLY NOW, FIX LATER' MAINT PROGRAM IS IMPACTING SAFETY.

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.