# Accident 20120716014229A: Cessna 172N, Rockford, ID, July 16, 2012

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 16, 2012, 10:05 local time
- Place: Rockford, ID
- Damage: Substantial damage
- Phase of flight: Cruise/Level Flight
- Operating rules: General operating rules (Part 91)
- Location: 43.1894° N, 112.5317° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=43.1894&lon=-112.5317&mi=10
- Aircraft: N5204K, a cancelled registration (https://openairdocs.org/deregistered/N5204K-2014-09-03) (OpenAirDocs)
- Registry model: Cessna 172N (registry code 2072434, https://openairdocs.org/model/cessna-172n) (OpenAirDocs)
- Registry engine: Lycoming 0-320 series (registry code 41508, https://openairdocs.org/engine/lycoming-0-320-series) (OpenAirDocs)
- Reported make and model: CESSNA 172N
- Reported engine: LYCOMING 0-320 SERIES
- People aboard: 1
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Commercial pilot, flight instructor
- Pilot flight hours: 1,900 total, 1,800 in this make and model, 25 in the last 90 days
- NTSB investigation: [NTSB WPR12LA306](https://openairdocs.org/ntsb/WPR12LA306) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20120716014229A

## Narrative

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

AIRCRAFT LOST POWER 45 MINUTES INTO FLIGHT RESULTING IN FORCED LANDING 1.5 MILES SE OF ROCKFORD, ID IN A FIELD. UPON LANDING A/C FLIPPED OVER. INSTRUCTOR REPORTED THE DAY OF THE ACCIDENT THAT THE AIRCRAFT WAS DOING GREAT UNTIL ABOUT 45-60 MINUTES INTO THE TRAINING FLIGHT.  THE ENGINE STARTED RUNNING ROUGH AND THEY LOST POWER IN CRUISE FROM 2400 RPM TO ABOUT 1900 RPM.  THEY TRIED CARB HEAT, THROTTLE CHANGES. NOTHING SEEMED TO WORK. THERE WERE STORMS IN THE AREA AND LIGHT RAIN. FLIGHT STARTED IN IDAHO FALLS AT ABOUT 0835 WITH FUEL TOPPED OFF. THEY WENT TO ARCO, ID FOR SOME TOUCH AND GO'S, THEN WERE HEADED FOR BLACKFOOT, ID AND RETURN TO IDA. STUDENT PILOT REPORTED LARGE VIBRATION. INSTRUCTOR TOOK CONTROLS AND DETERMINED THEY COULD NOT MAKE IT TO BLACKFOOT WITH THE REDUCED POWER AND DIVERTED TO ROCKFORD, ID FOR PRECAUTIONARY LANDING. DURING THE GLIDE INTO ROCKFORD HE TRIED POWER CHANGES AGAIN WITH MIXTURE, THROTTLE AND CARB HEAT WITH STILL NO CHANGES. HE VERIFIED BOTH FUEL TANKS INDICATIONS SHOWED GOOD. HE STATED THAT HIS APPROACH WAS TOO HIGH WITH THE SHORT RUNWAY INTO ROCKFORD.  HE TRIED TO GO AROUND. THE AIRCRAFT LOST POWER SO HE PUT DOWN IN A WHEAT FIELD WITH THE STALL WARNING HORN GOING OFF. A/C MAINS TOUCHED DOWN. THE NOSE GEAR GOT CAUGHT IN THE WHEAT CAUSING THE AIRCRAFT TO FLIP ON ITS BACK.

## 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 WPR12LA306](https://openairdocs.org/ntsb/WPR12LA306), Jul 16, 2012: Cessna 172N (N5204K), Rockford, ID, substantial damage. Probable cause: A partial loss of engine power during cruise flight due to the failure of the No. 3 cylinder exhaust valve for reasons that could not be determined due to the damage to the valve head and the missing…

## Other reports on N5204K (1)

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

- [Accident 20050203001159A](https://openairdocs.org/incident/20050203001159A), Feb 3, 2005: Cessna 172N (N5204K), Idaho Falls, ID, Substantial damage. (-23) On February 3, 2005 at 1240 MST a Cessna 172N, N5204K, s/n 17274009, ran off the left side of rwy 35 at Idaho Falls airport, (ida) and flipped over,…

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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