# Incident 20120806016489I: Piper PA-28-181, Deer Valley, AZ, August 6, 2012

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: August 6, 2012, 10:39 local time
- Place: Deer Valley, AZ
- Damage: No damage
- Phase of flight: Descent
- Operating rules: Pilot school (Part 141)
- Location: 33.6839° N, 112.1349° W: Placed by OpenAirDocs: center of Deer Valley, AZ, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.6839&lon=-112.1349&mi=10
- Aircraft: N296PA, a cancelled registration (https://openairdocs.org/deregistered/N296PA-2018-09-13) (OpenAirDocs)
- Registry model: Piper PA-28-181 (registry code 7102807, https://openairdocs.org/model/piper-pa-28-181) (OpenAirDocs)
- Registry engine: Lycoming O-360 series (registry code 41575, https://openairdocs.org/engine/lycoming-o-360-series) (OpenAirDocs)
- Reported make and model: PIPER PA-28-181
- Reported engine: LYCOMING O-360 SERIES
- People aboard: 3
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Commercial pilot, flight instructor
- Pilot flight hours: 3,000 total, 2,500 in this make and model, 48 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20120806016489I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

DURING FLIGHT, THE STUDENT PILOT STATED THE THROTTLE WAS STUCK. INSTRUCTOR THEN TOOK THE CONTROLS. INSTRUCTOR DETERMINED THAT THE THROTTLE WOULD NOT MOVE AFT BELOW 2100 RPM'S, BUT COULD BE MOVED FORWARD. INSTRUCTOR COULD NOT SEE ANY OBSTRUCTIONS OR DETERMINE ANY CAUSE FOR THE SITUATION. INSTRUCTOR DECIDED NOT TO FORCE THE THROTTLE TO MOVE TO KEEP IT FROM BECOMING STUCK AT EITHER A HIGHER OR LOWER POWER SETTING WHICH COULD BE DETRIMENTAL. INSTRUCTOR THEN DECLARED AN EMERGENCY WITH DVT TOWER AND INFORMED THEM THAT HE INTENDED TO CUT THE MIXTURE ON FINAL AND LAND. AIRCRAFT WAS LANDED WITHOUT FURTHER INCIDENT.AIRCRAFT WAS INSPECTED BY MAINTENANCE. MAINTENANCE PERSONNEL VERIFIED DISCREPANCY AND FOUND A BROKEN TIE WRAP AT THE WIRE BUNDLE ADJACENT TO THE THROTTLE SWITCH IN THE QUADRANT WITH LOOSE WIRES INTERFERING WITH CLEVIS/JAM NUT. A REVIEW OF AIRCRAFT RECORDS SHOWED THAT THE AIRCRAFT HAD A PREVIOUS DISCREPANCY ON 7-20-12 WHERE THE AIR CONDITIONING WAS INTERMITTENT, LEADING MAINTENANCE PERSONNEL TO INSPECT THE SYSTEM WIRING AND PERFORM AN OPERATIONAL CHECK. IT COULD NOT BE DETERMINED IF MAINTENANCE DURING THIS TIME CAUSED THE INTERFERENCE DESCRIBED ABOVE. NO OTHER MAINTENANCE RECORDS DESCRIBED WORK BEING PERFORMED IN THIS AREA SINCE LAST RELEVANT PHASE INSPECTION.

## Other reports on N296PA (1)

Matched to the same aircraft by N-number and date.

- [Accident 20090829018569A](https://openairdocs.org/incident/20090829018569A), Aug 29, 2009: Piper PA28181 (N296PA), Scottsdale, AZ, Minor damage. The student and instructor were performing touch and go landings at Scottsdale municipal airport (sdl). The student was making stabilized approaches on each…

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.

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