<< >> NASA ASRS Report 486151, September 2000

An MD88 was dispatched in non compliance with the flow limiter sense line not connected to the cooling turbine after maintenance.

Attributes
ACN	486151
Time
Date	200009
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-88
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance ground : parked
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : airframe technician : powerplant
Experience	maintenance technician : 11
ASRS Report	486151
Person 2
Affiliation	company : air carrier
Function	maintenance : lead technician
Qualification	technician : airframe technician : powerplant
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure
Independent Detector	aircraft equipment other aircraft equipment : pack flow indication
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : manuals contributing factor : lighting contributing factor : weather performance deficiency : testing performance deficiency : non compliance with legal requirements performance deficiency : installation performance deficiency : logbook entry performance deficiency : inspection performance deficiency : repair
Supplementary
Problem Areas	Aircraft Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

After replacing a cooling turbine on an MD88, I did not connect a sense line to the flow limiter. The aircraft went back into service and low flow was experienced by the crew. Maintenance at the arrival city of the aircraft found the problem and reconnected the sense line. Rereading the mco procedure would have shown the 'logbook entry required' for the sense line being disconnected. Therefore, I should have had a logbook entry to reconnect the line.

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Original NASA ASRS Text

Title: AN MD88 WAS DISPATCHED IN NON COMPLIANCE WITH THE FLOW LIMITER SENSE LINE NOT CONNECTED TO THE COOLING TURBINE AFTER MAINT.

Narrative: AFTER REPLACING A COOLING TURBINE ON AN MD88, I DID NOT CONNECT A SENSE LINE TO THE FLOW LIMITER. THE ACFT WENT BACK INTO SVC AND LOW FLOW WAS EXPERIENCED BY THE CREW. MAINT AT THE ARR CITY OF THE ACFT FOUND THE PROB AND RECONNECTED THE SENSE LINE. REREADING THE MCO PROC WOULD HAVE SHOWN THE 'LOGBOOK ENTRY REQUIRED' FOR THE SENSE LINE BEING DISCONNECTED. THEREFORE, I SHOULD HAVE HAD A LOGBOOK ENTRY TO RECONNECT THE LINE.

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.