20071023023199I

Incident · No damage

FAA incident report · Cessna 152 · Stillwater, OK · October 23, 2007

Date: October 23, 2007 · 15:00 local
Place: Stillwater, OK
Phase of flight: Normal Cruise
Operating rules: General operating rules (Part 91)
Operator: GH8S
Damage: No damage
Aircraft: N46948
Reported as: Cessna 152
Reported engine: Lycoming O235L2C
People aboard: 2
Fatal injuries: 0
Pilot’s flight hours: 300 total0 in this make and model0 in the last 90 days

N46948Registration cancelled Aug 19, 2013 · Cessna 152S/N 15283148 · Built 1979 Airframe modelCessna 152 Engine modelLycoming 0-235 series4 cycle

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry 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.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

(-23) Aircraft experienced a partial power loss while conducting a local training flight. Instructor performed an emergency landing in a field which was accomplished successfully. School performed an engine inspection (see attached) and discovered the exhaust valve assembly screw and lock nut had become loose and were lying on the cylinder's rocker arm boss between the exhaust and intake rocker arms. School will be advised to complete a m or d report as well as inspect other aircraft of their fleet with the same engine.

As the FAA filed it

(-23) AIRCRAFT EXPERIENCED A PARTIAL POWER LOSS WHILE CONDUCTING A LOCAL TRAINING FLIGHT. INSTRUCTOR PERFORMED AN EMERGENCY LANDING IN A FIELD WHICH WAS ACCOMPLISHED SUCCESSFULLY. SCHOOL PERFORMED AN ENGINE INSPECTION (SEE ATTACHED) AND DISCOVERED THE EXHAUST VALVE ASSEMBLY SCREW AND LOCK NUT HAD BECOME LOOSE AND WERE LYING ON THE CYLINDER'S ROCKER ARM BOSS BETWEEN THE EXHAUST AND INTAKE ROCKER ARMS. SCHOOL WILL BE ADVISED TO COMPLETE A M OR D REPORT AS WELL AS INSPECT OTHER AIRCRAFT OF THEIR FLEET WITH THE SAME ENGINE.