<< >> NASA ASRS Report 562965, August 2002

A canadair CL65 was dispatched in non compliance with a nosewheel steering failure and maintenance manual repair procedures were incomplete.

Attributes
ACN	562965
Time
Date	200208
Day	Fri
Local Time Of Day	1201 To 1800
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	Regional Jet CL65, Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : powerplant technician : airframe
Experience	maintenance technician : 1
ASRS Report	562965
Person 2
Affiliation	company : air carrier
Function	oversight : supervisor
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : far non adherence : published procedure
Independent Detector	aircraft equipment other aircraft equipment : nose steering fault light
Resolutory Action	flight crew : diverted to another airport
Consequence	other other Other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : testing performance deficiency : repair performance deficiency : fault isolation
Supplementary
Problem Areas	Maintenance Human Performance Aircraft Company
Primary Problem	Maintenance Human Performance

Narrative:

I was called out to work aircraft X for a nosewheel steering fault. The write-up was nosewheel steering failed on retraction. I cleaned the nosewheel steering actuator and checked the system. Had no icss message, so I went through the aircraft maintenance manual 32-50 to operations check. I was in the midst of checking the nosewheel steering ecu when the supervisor on shift was pressuring me to sign the aircraft off. He was telling me the manufacturer had put out a service bulletin about the problem and that it was a nuisance problem. I told mr X that I needed to check out the ecu to see if there were any codes or faults. I wasn't allowed to do this step because he felt that the service bulletin covered the problem. I need to do this step in the aircraft maintenance manual, but wasn't allowed to. The plane later diverted in to ZZZ1.

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Original NASA ASRS Text

Title: A CANADAIR CL65 WAS DISPATCHED IN NON COMPLIANCE WITH A NOSEWHEEL STEERING FAILURE AND MAINT MANUAL REPAIR PROCS WERE INCOMPLETE.

Narrative: I WAS CALLED OUT TO WORK ACFT X FOR A NOSEWHEEL STEERING FAULT. THE WRITE-UP WAS NOSEWHEEL STEERING FAILED ON RETRACTION. I CLEANED THE NOSEWHEEL STEERING ACTUATOR AND CHKED THE SYS. HAD NO ICSS MESSAGE, SO I WENT THROUGH THE ACFT MAINT MANUAL 32-50 TO OPS CHK. I WAS IN THE MIDST OF CHKING THE NOSEWHEEL STEERING ECU WHEN THE SUPVR ON SHIFT WAS PRESSURING ME TO SIGN THE ACFT OFF. HE WAS TELLING ME THE MANUFACTURER HAD PUT OUT A SVC BULLETIN ABOUT THE PROB AND THAT IT WAS A NUISANCE PROB. I TOLD MR X THAT I NEEDED TO CHK OUT THE ECU TO SEE IF THERE WERE ANY CODES OR FAULTS. I WASN'T ALLOWED TO DO THIS STEP BECAUSE HE FELT THAT THE SVC BULLETIN COVERED THE PROB. I NEED TO DO THIS STEP IN THE ACFT MAINT MANUAL, BUT WASN'T ALLOWED TO. THE PLANE LATER DIVERTED IN TO ZZZ1.

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.