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A fokker 100 was dispatched in non compliance with the #1 engine rear thrust control rod assembly bolt removed causing in-flight engine shutdown due to loss of throttle control.
| Attributes | |
| ACN | 431033 |
| Time | |
| Date | 199903 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| 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 | Fokker 100 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| ASRS Report | 431033 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Qualification | technician : airframe technician : powerplant |
| ASRS Report | 431032 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure non adherence : company policies other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : #1 eng indications other flight crewa other flight crewb |
| Resolutory Action | controller : issued new clearance flight crew : diverted to another airport |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : installation performance deficiency : non compliance with legal requirements performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
I was involved with the engine change in ZZZ on #1 engine change due to gear box failure. I checked engine rig per maintenance manual for engine change paperwork. I was having trouble installing rig pins in engine and fuel control on #1 engine. During troubleshooting, I removed bolt and thrust control rod assembly at back of #1 engine rear cad to find where rig was off. After engine was rigged and safetied, bolt cpn 5918578 ipc 76-11-06 figure 7 was overlooked. I was following aircraft for follow-up and performance when I saw aircraft was in maintenance with an in-flight shutdown with no throttle control. It came to mind, the one bolt safety I overlooked.
Original NASA ASRS Text
Title: A FOKKER 100 WAS DISPATCHED IN NON COMPLIANCE WITH THE #1 ENG REAR THRUST CTL ROD ASSEMBLY BOLT REMOVED CAUSING INFLT ENG SHUTDOWN DUE TO LOSS OF THROTTLE CTL.
Narrative: I WAS INVOLVED WITH THE ENG CHANGE IN ZZZ ON #1 ENG CHANGE DUE TO GEAR BOX FAILURE. I CHKED ENG RIG PER MAINT MANUAL FOR ENG CHANGE PAPERWORK. I WAS HAVING TROUBLE INSTALLING RIG PINS IN ENG AND FUEL CTL ON #1 ENG. DURING TROUBLESHOOTING, I REMOVED BOLT AND THRUST CTL ROD ASSEMBLY AT BACK OF #1 ENG REAR CAD TO FIND WHERE RIG WAS OFF. AFTER ENG WAS RIGGED AND SAFETIED, BOLT CPN 5918578 IPC 76-11-06 FIGURE 7 WAS OVERLOOKED. I WAS FOLLOWING ACFT FOR FOLLOW-UP AND PERFORMANCE WHEN I SAW ACFT WAS IN MAINT WITH AN INFLT SHUTDOWN WITH NO THROTTLE CTL. IT CAME TO MIND, THE ONE BOLT SAFETY I OVERLOOKED.
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.