19980602029809A

Accident · Substantial damage

FAA accident report · Cessna 150 · Mentone, TX · June 2, 1998

Date
June 2, 1998 · 12:50 local
Place
Mentone, TX
Phase of flight
Fcd/Prec Ldg From Cruise
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N6486T
NTSB investigation
NTSBFTW98LA204
Reported as
Cessna 150
Reported engine
Lycoming O320E3D
People aboard
1
Fatal injuries
0
Pilot’s flight hours
107 total107 in this make and model9 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.

On June 2, 1998, at 1250 central daylight time, a Cessna 150 airplane, N6486T, was substantially damaged during a forced landing following a partial loss of engine power near Mentone, Texas. The student pilot, sole occupant of the airplane, was not injured. The airplane was owned and operated by the student pilot under title 14 CFR part 91. Visual meteorological conditions prevailed for the local instructional flight for which a flight plan was not filed. The flight originated from the lukins flying service airstrip near pecos, Texas, at approximately 1230. The student pilot reported to the FAA inspector that the itinerary for his solo cross country flight included stips at Mentone and wink, and a return flight to pecos. While in cruise flight, the engine began to run rough and the engine RPM dropped to somewhere around 1200 to 1500 RPM. After completing his emergency procedures, the pilot elected to execute a precautionary landing on the service road to an operating oil pump, located approximatelly 2 miles away. During the precautionary landing on the narrow domed road, with the flaps fully extended, the pilot lost control of the airplane. The pilot added that the right main landing gear tire dug into the sand. The right main landing gear collapsed rearward after striking a large rock. Subsequently, the right wing impacted the ground. Examination of the airplane by the FAA inspector confirmed that the right wing, the fuselage, and the landing gear attaching point for the right main gear, sustianed structural damage. The reason for the reported rough running engine could not be determined; however, the pilot suspected vapor lock. The engine could not be started at the accident site due to a dead battery. According to maintenance records provided by the FAA inspector, the 1960 model airplane had been modified on June 15, 1996, when a 150 horsepower Lycoming 0-320-E3D engine was installed to replace the stock 100 horsepower Continental engine. The modification, performed under STC SA4795SW, also featured a larger propeller and the addition of an stol kit. According to FAA medical record, the student pilot had accumulated a total of 85 hours at the time of his last medical examinaiton on februaray 11, 1997. His total time at the accident was 107 hours. (-23) this student pilot lost control of his aircraft on roll out following a precautionary landing. He said the engine was sputtering so he decided to land on the oil field service road. Post accident investigation failed to identify any engine problems. The pilot suspected vapor locking. The temperature was 110 degrees f. the aircraft suffered substantial damage and the pilot received no injuries.

As the FAA filed it

ON JUNE 2, 1998, AT 1250 CENTRAL DAYLIGHT TIME, A CESSNA 150 AIRPLANE, N6486T, WAS SUBSTANTIALLY DAMAGED DURING A FORCED LANDING FOLLOWING A PARTIAL LOSS OF ENGINE POWER NEAR MENTONE, TEXAS. THE STUDENT PILOT, SOLE OCCUPANT OF THE AIRPLANE, WAS NOT INJURED. THE AIRPLANE WAS OWNED AND OPERATED BY THE STUDENT PILOT UNDER TITLE 14 CFR PART 91. VISUAL METEOROLOGICAL CONDITIONS PREVAILED FOR THE LOCAL INSTRUCTIONAL FLIGHT FOR WHICH A FLIGHT PLAN WAS NOT FILED. THE FLIGHT ORIGINATED FROM THE LUKINS FLYING SERVICE AIRSTRIP NEAR PECOS, TEXAS, AT APPROXIMATELY 1230. THE STUDENT PILOT REPORTED TO THE FAA INSPECTOR THAT THE ITINERARY FOR HIS SOLO CROSS COUNTRY FLIGHT INCLUDED STIPS AT MENTONE AND WINK, AND A RETURN FLIGHT TO PECOS. WHILE IN CRUISE FLIGHT, THE ENGINE BEGAN TO RUN ROUGH AND THE ENGINE RPM DROPPED TO SOMEWHERE AROUND 1200 TO 1500 RPM. AFTER COMPLETING HIS EMERGENCY PROCEDURES, THE PILOT ELECTED TO EXECUTE A PRECAUTIONARY LANDING ON THE SERVICE ROAD TO AN OPERATING OIL PUMP, LOCATED APPROXIMATELLY 2 MILES AWAY. DURING THE PRECAUTIONARY LANDING ON THE NARROW DOMED ROAD, WITH THE FLAPS FULLY EXTENDED, THE PILOT LOST CONTROL OF THE AIRPLANE. THE PILOT ADDED THAT THE RIGHT MAIN LANDING GEAR TIRE DUG INTO THE SAND. THE RIGHT MAIN LANDING GEAR COLLAPSED REARWARD AFTER STRIKING A LARGE ROCK. SUBSEQUENTLY, THE RIGHT WING IMPACTED THE GROUND. EXAMINATION OF THE AIRPLANE BY THE FAA INSPECTOR CONFIRMED THAT THE RIGHT WING, THE FUSELAGE, AND THE LANDING GEAR ATTACHING POINT FOR THE RIGHT MAIN GEAR, SUSTIANED STRUCTURAL DAMAGE. THE REASON FOR THE REPORTED ROUGH RUNNING ENGINE COULD NOT BE DETERMINED; HOWEVER, THE PILOT SUSPECTED VAPOR LOCK. THE ENGINE COULD NOT BE STARTED AT THE ACCIDENT SITE DUE TO A DEAD BATTERY. ACCORDING TO MAINTENANCE RECORDS PROVIDED BY THE FAA INSPECTOR, THE 1960 MODEL AIRPLANE HAD BEEN MODIFIED ON JUNE 15, 1996, WHEN A 150 HORSEPOWER LYCOMING 0-320-E3D ENGINE WAS INSTALLED TO REPLACE THE STOCK 100 HORSEPOWER CONTINENTAL ENGINE. THE MODIFICATION, PERFORMED UNDER STC SA4795SW, ALSO FEATURED A LARGER PROPELLER AND THE ADDITION OF AN STOL KIT. ACCORDING TO FAA MEDICAL RECORD, THE STUDENT PILOT HAD ACCUMULATED A TOTAL OF 85 HOURS AT THE TIME OF HIS LAST MEDICAL EXAMINAITON ON FEBRUARAY 11, 1997. HIS TOTAL TIME AT THE ACCIDENT WAS 107 HOURS. (-23) THIS STUDENT PILOT LOST CONTROL OF HIS AIRCRAFT ON ROLL OUT FOLLOWING A PRECAUTIONARY LANDING. HE SAID THE ENGINE WAS SPUTTERING SO HE DECIDED TO LAND ON THE OIL FIELD SERVICE ROAD. POST ACCIDENT INVESTIGATION FAILED TO IDENTIFY ANY ENGINE PROBLEMS. THE PILOT SUSPECTED VAPOR LOCKING. THE TEMPERATURE WAS 110 DEGREES F. THE AIRCRAFT SUFFERED SUBSTANTIAL DAMAGE AND THE PILOT RECEIVED NO 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.