20080514833709A

Accident · Substantial damage

FAA accident report · Cessna 172M · Hampton, NJ · May 14, 2008

Date
May 14, 2008 · 13:20 local
Place
Hampton, NJ
Phase of flight
Practice Training Manuevers
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N9882Q
NTSB investigation
NTSBNYC08CA181
Reported as
Cessna 172M
Reported engine
Lycoming O320*
People aboard
2
Fatal injuries
0
Pilot’s flight hours
3,280 total600 in this make and model21 in the last 90 days

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) According to the instructor, he was demonstrating slow flight to his student. During the process, he was going to demonstrate an approach to landing stall. The instructor stated when he reduced power, the propeller seemed to be turning slowly. When he applied power, "nothing happened", and the propeller stopped rotating. He stated he lowered the nose of the aircraft, and noticed the electrical instruments flash off and on, he also stated he attempted to restart using the starter but the propeller did not turn. Investigation of the engine by airworthiness inspectors revealed nothing unusual, there was free rotation of the propeller, fuel was present as well as spark. Compression tested good, and the alternator was not binding. The aircraft was at three thousand feet when the engine stopped. The instructor chose a rough, partially plowed field, touched down slowly but the aircraft nosed over on its back breaking two of the engine mounts and buckled the wing spars. The propeller blades were bent towards the rear of the aircraft, and there was no sign of engine power on the leading edge of the propeller. The weater was VMC, there were only minor injuries.

As the FAA filed it

(-23) ACCORDING TO THE INSTRUCTOR, HE WAS DEMONSTRATING SLOW FLIGHT TO HIS STUDENT. DURING THE PROCESS, HE WAS GOING TO DEMONSTRATE AN APPROACH TO LANDING STALL. THE INSTRUCTOR STATED WHEN HE REDUCED POWER, THE PROPELLER SEEMED TO BE TURNING SLOWLY. WHEN HE APPLIED POWER, "NOTHING HAPPENED", AND THE PROPELLER STOPPED ROTATING. HE STATED HE LOWERED THE NOSE OF THE AIRCRAFT, AND NOTICED THE ELECTRICAL INSTRUMENTS FLASH OFF AND ON, HE ALSO STATED HE ATTEMPTED TO RESTART USING THE STARTER BUT THE PROPELLER DID NOT TURN. INVESTIGATION OF THE ENGINE BY AIRWORTHINESS INSPECTORS REVEALED NOTHING UNUSUAL, THERE WAS FREE ROTATION OF THE PROPELLER, FUEL WAS PRESENT AS WELL AS SPARK. COMPRESSION TESTED GOOD, AND THE ALTERNATOR WAS NOT BINDING. THE AIRCRAFT WAS AT THREE THOUSAND FEET WHEN THE ENGINE STOPPED. THE INSTRUCTOR CHOSE A ROUGH, PARTIALLY PLOWED FIELD, TOUCHED DOWN SLOWLY BUT THE AIRCRAFT NOSED OVER ON ITS BACK BREAKING TWO OF THE ENGINE MOUNTS AND BUCKLED THE WING SPARS. THE PROPELLER BLADES WERE BENT TOWARDS THE REAR OF THE AIRCRAFT, AND THERE WAS NO SIGN OF ENGINE POWER ON THE LEADING EDGE OF THE PROPELLER. THE WEATER WAS VMC, THERE WERE ONLY MINOR INJURIES.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.