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Pilot owner could not control aircraft engine output when leveling off after climb out and was forced to land at a nearby airport. This was the first flight after major engine maintenance.
| Attributes | |
| ACN | 205167 |
| Time | |
| Date | 199203 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : phf airport : jgg |
| State Reference | VA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : phf |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, High Wing, 1 Eng, Fixed Gear |
| Flight Phase | cruise other |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | Other |
| Function | other personnel other |
| Qualification | other other : other pilot : private |
| ASRS Report | 205167 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | none taken : unable |
| Consequence | faa : investigated |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
Installation of engine part was performed on small aircraft aircraft. Installation was completed on mar/xx/92 and final adjustments on mar/xy/92. Aircraft was started and run again with no problems. Owner/pilot departed jgg and after reaching cruise altitude could not retard engine speed with throttle. Movement of throttle had no effect. Pilot diverted to phf and declared an 'ife.' aircraft landed engine off without damage or injury. Aircraft was towed to a maintenance hangar on phf. Inspection revealed that the carburetor arm/throttle rod end bolt was missing. A temporary bolt was installed so pilot could return to jgg. After landing at jgg aircraft was put into maintenance hangar that initially performed removal and installation of carburetor and hardware was installed that is called for by aircraft manufacturer, service manual, service bulletins, and airworthiness directives. It is my opinion that the bolt broke or sheared on takeoff run or during climb out and vibrated free and was lost in-flight. Future recommendations: change all hardware on fuel control devices when they are changed to new.
Original NASA ASRS Text
Title: PLT OWNER COULD NOT CTL ACFT ENG OUTPUT WHEN LEVELING OFF AFTER CLB OUT AND WAS FORCED TO LAND AT A NEARBY ARPT. THIS WAS THE FIRST FLT AFTER MAJOR ENG MAINT.
Narrative: INSTALLATION OF ENG PART WAS PERFORMED ON SMA ACFT. INSTALLATION WAS COMPLETED ON MAR/XX/92 AND FINAL ADJUSTMENTS ON MAR/XY/92. ACFT WAS STARTED AND RUN AGAIN WITH NO PROBLEMS. OWNER/PLT DEPARTED JGG AND AFTER REACHING CRUISE ALT COULD NOT RETARD ENG SPD WITH THROTTLE. MOVEMENT OF THROTTLE HAD NO EFFECT. PLT DIVERTED TO PHF AND DECLARED AN 'IFE.' ACFT LANDED ENG OFF WITHOUT DAMAGE OR INJURY. ACFT WAS TOWED TO A MAINT HANGAR ON PHF. INSPECTION REVEALED THAT THE CARB ARM/THROTTLE ROD END BOLT WAS MISSING. A TEMPORARY BOLT WAS INSTALLED SO PLT COULD RETURN TO JGG. AFTER LNDG AT JGG ACFT WAS PUT INTO MAINT HANGAR THAT INITIALLY PERFORMED REMOVAL AND INSTALLATION OF CARB AND HARDWARE WAS INSTALLED THAT IS CALLED FOR BY ACFT MANUFACTURER, SVC MANUAL, SVC BULLETINS, AND AIRWORTHINESS DIRECTIVES. IT IS MY OPINION THAT THE BOLT BROKE OR SHEARED ON TKOF RUN OR DURING CLBOUT AND VIBRATED FREE AND WAS LOST INFLT. FUTURE RECOMMENDATIONS: CHANGE ALL HARDWARE ON FUEL CTL DEVICES WHEN THEY ARE CHANGED TO NEW.
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.