# Accident 19980724046449A: Piper PA28151, Newport, NH, July 24, 1998 - Type: FAA accident report (Accident/Incident Data System), as reported - Date: July 24, 1998, 11:58 local time - Place: Newport, NH - Airport: Parlin Field Arapt - Damage: Destroyed - Phase of flight: Normal Cruise - Operating rules: General operating rules (Part 91) - Location: 43.3871° N, 72.1876° W: Placed by OpenAirDocs at , within about a mile (OpenAirDocs) - Nearby events: https://openairdocs.org/map.md?lat=43.3871&lon=-72.1876&mi=10 - Aircraft: N44438, a cancelled registration (https://openairdocs.org/deregistered/N44438-1999-03-22) (OpenAirDocs) - Registry model: Piper PA-28-151 (registry code 7102805, https://openairdocs.org/model/piper-pa-28-151) (OpenAirDocs) - Reported make and model: PIPER PA28151 - Reported engine: LYC O320D3G - Fatal injuries: 0 - Pilot flight hours: 128 total, 56 in this make and model, 9 in the last 90 days - NTSB investigation: [NTSB NYC98LA152](https://openairdocs.org/ntsb/NYC98LA152) (OpenAirDocs) - FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/) - Page: https://openairdocs.org/incident/19980724046449A ## Narrative As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^. (.4)AFTER DEPARTING AND CLIMBING TO A CRUISE ALTITUDE OF 6,500 FEET ABOVE MEAN SEA LEVEL, THE PILOT MADE A POWER REDUCTION TO DESCEND BELOW A CLOUD LAYER. AFTER REDUCING POWER THE THROTTLE BECAME STUCK. UNABLE TO MOVE THE THROTTLE, THE PILOT DIVERTED TO AN ALTERNATE AIRPORT. WITH THE ENGINE STILL RUNNING THE AIRPLANE TOUCHDOWN ON THE RUNWAY, BUT THE PILOT WAS UNABLE TO STOP THE AIRPLANE. THE AIRPLANE EXITED THE DEPARTURE END OF THE RUNWAY, TRAVELED 75 FEET, AND CAME TO REST ON TOP OF A HILL. WHILE LANDING, THE PILOT THOUGHT THE THROTTLE WAS IN THE IDLE POSITION. AFTER THE ACCIDENT HE REALIZED IT WAS SLIGHTLY OPEN. EXAMINATION OF THE CARBURETOR, WHICH HAD 12 HOURS SINCE OVERHAUL, REVEALED THAT THE THROTTLE SHAFT COULD NOT BE ROTATED BY HAND, AND A PUNCH AND HAMMER WAS REQUIRED TO REMOVE THE SHAFT. THE SHAFT WAS GALLED WHERE IT RESTED ON THE BUSHINGS. BOTH ENDS OF THE ORIGINAL SHAFT (PART NUMBER CF 13-1521) MEASURED .3105 OF AN INCH IN DIAMETER. A NEW SHAFT SUPPLIED BY THE OVERHAUL FACILITY MEASURED .3104 OF AN INCH IN DIAMETER AT BOTH ENDS. UNDER THE SUPERVISION OF THE NTSB INVESTIGATOR, THE ORIGINAL THROTTLE BUSHINGS WERE RE REAMED WITH THE ORIGINAL ROUTER. THEN, THE NEW THROTTLE SHAFT WAS INSERTED, BUT WAS DIFFICULT TO ROTATE. AFTER REMOVING THE OLD THROTTLE SHAFT, THE BUSHINGS WERE RE REAMED, USING A NEW ROUTER THE COMPANY HAD BROUGHT AFTER THE ACCIDENT. AGAIN, THE OLD SHAFT WAS INSERTED, BUT THIS TIME IT ROTATED FREELY. THE BUTTERFLY VALVE WAS THEN INSTALLED, AND THE THROTTLE SHAFT CONTINUED TO ROTATE WITHOUT DIFFICULTY. (-23) PILOT REDUCED POWER FROM CRUISE SETTING IN ORDER TO DESCEND BELOW CLOUDS EN ROUTE. WHEN HE ATTEMPTED TO REAPPLY POWER, ENCOUNTERED STUCK THROTTLE. UNABLE TO MOVE THROTTLE CONTROL EITHER DIRECTION. MADE EMERGENCY LANDING AT NEWPORT, NH WHILE OPERATING @ PARTIAL POWER. OVER RAN END OF RUNWAY. ## The NTSB's investigation of this event (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB NYC98LA152](https://openairdocs.org/ntsb/NYC98LA152), Jul 24, 1998: Piper PA-28-151 (N44438), Newport, NH, destroyed. Probable cause: The seizure of the throttle shaft, due to the overhaul facilities' failure to insure all metal fragments had been removed from the carburetor before inserting the throttle shaft after reaming the… ## Other reports on N44438 (1) Matched to the same aircraft by N-number and date. - [Incident 19901027054039I](https://openairdocs.org/incident/19901027054039I), Oct 27, 1990: Piper PA28151 (N44438), Holyoke, MA, Minor damage. Engine vibration on descent. Elected to land in field. Nose wheel hit hole and bent back. From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.