 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
An engine mechanic reports receiving another ge CF34-3B engine from a contracted quick engine change (qec) build repair vendor with a serviceable FAA pmi tag; even though the fuel control unit (FCU) was mis-rigged and the fuel supply feed line at the engine fuel pump connection had a yellow plastic plug in the end fitting.
| Attributes | |
| ACN | 932323 |
| Time | |
| Date | 201102 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Regional Jet 200 ER/LR (CRJ200) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Powerplant Fuel Control Unit |
| Person 1 | |
| Function | Inspector Technician |
| Qualification | Maintenance Airframe Maintenance Powerplant |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural FAR Deviation - Procedural Published Material / Policy |
Narrative:
A [general electric CF34-3B] engine was delivered from quick engine change (qec) vendor X. Engine was qec'd with a serviceable [FAA] pmi tag and an additional serviceable remarks form with 'typical' items listed. After engine installation and prior to 'wet' motoring;the rigging of fuel control unit (FCU) was checked; as required by installation job card. FCU was found to be at 20-degrees on rig protractor at idle setting. Idle is to be at 16-degrees. FCU rigging had to be accomplished. Additionally when 'wet' motoring process was accomplished; no fuel flow was indicated and no noticeable fuel out of engine; other than initial visual evidence; which was determined to be the residual preservation oil. Upon further investigation it was found that the main fuel supply feed line at the fuel pump connection point; the line had a yellow plastic plug in the end fitting; preventing fuel from entering the fuel pump. Suggestion to avoid re-occurrence will be the same as all other reports filed; for this [contract] vendor to have better quality control over the work process that is used and better oversight to assure the product is indeed 'serviceable'.
Original NASA ASRS Text
Title: An Engine Mechanic reports receiving another GE CF34-3B engine from a contracted Quick Engine Change (QEC) build Repair Vendor with a Serviceable FAA PMI Tag; even though the Fuel Control Unit (FCU) was mis-rigged and the Fuel Supply feed line at the engine fuel pump connection had a yellow plastic plug in the end fitting.
Narrative: A [General Electric CF34-3B] engine was delivered from Quick Engine Change (QEC) Vendor X. Engine was QEC'd with a Serviceable [FAA] PMI Tag and an additional Serviceable remarks form with 'typical' items listed. After engine installation and prior to 'wet' motoring;the rigging of Fuel Control Unit (FCU) was checked; as required by installation job card. FCU was found to be at 20-degrees on rig protractor at idle setting. Idle is to be at 16-degrees. FCU rigging had to be accomplished. Additionally when 'Wet' motoring process was accomplished; no Fuel Flow was indicated and no noticeable fuel out of engine; other than initial visual evidence; which was determined to be the residual preservation oil. Upon further investigation it was found that the Main Fuel Supply feed line at the fuel pump connection point; the line had a yellow plastic plug in the end fitting; preventing fuel from entering the Fuel pump. Suggestion to avoid re-occurrence will be the same as all other reports filed; for this [Contract] Vendor to have better Quality Control over the work process that is used and better oversight to assure the product is indeed 'Serviceable'.
Data retrieved from NASA's ASRS site as of April 2012 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.