<< >> NASA ASRS Report 592562, July 2003

A B737-300 was dispatched in non compliance with right engine borescope plug S17 removed and not replaced. Incurred damage to core cowling.

Attributes
ACN	592562
Time
Date	200307
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzz.airport
State Reference	US
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance ground : parked
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
ASRS Report	592562
Person 2
Affiliation	company : air carrier
Function	maintenance : technician
ASRS Report	593379
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure
Resolutory Action	none taken : detected after the fact
Consequence	other other other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : non compliance with legal requirements performance deficiency : logbook entry performance deficiency : inspection performance deficiency : scheduled maintenance
Supplementary
Problem Areas	Aircraft Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

As per the fleet status morning report dated jul/thu/03, aircraft noted: aircraft damage, states, found #2 engine outboard core cowl had damage caused by borescope plug S17 missing. Please be advised that borescope plug S20 was only plug to be removed for that inspection on that side of #2 engine. We had no reason to remove S17 'exempt' seized plug S20 then S17 would be removed and an nrc would be generated for S20 and noted in the borescope paperwork. To the best of my knowledge, I do not nor did I have any reason to remove or inspect plug S17 on that day.

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Original NASA ASRS Text

Title: A B737-300 WAS DISPATCHED IN NON COMPLIANCE WITH R ENG BORESCOPE PLUG S17 REMOVED AND NOT REPLACED. INCURRED DAMAGE TO CORE COWLING.

Narrative: AS PER THE FLEET STATUS MORNING RPT DATED JUL/THU/03, ACFT NOTED: ACFT DAMAGE, STATES, FOUND #2 ENG OUTBOARD CORE COWL HAD DAMAGE CAUSED BY BORESCOPE PLUG S17 MISSING. PLEASE BE ADVISED THAT BORESCOPE PLUG S20 WAS ONLY PLUG TO BE REMOVED FOR THAT INSPECTION ON THAT SIDE OF #2 ENG. WE HAD NO REASON TO REMOVE S17 'EXEMPT' SEIZED PLUG S20 THEN S17 WOULD BE REMOVED AND AN NRC WOULD BE GENERATED FOR S20 AND NOTED IN THE BORESCOPE PAPERWORK. TO THE BEST OF MY KNOWLEDGE, I DO NOT NOR DID I HAVE ANY REASON TO REMOVE OR INSPECT PLUG S17 ON THAT DAY.

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.