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20050617012879I

Incident · Minor damage
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FAA incident report · Cessna 172N · Boca Chica, FL · June 17, 2005

FAA Aviation Safety Information Portal

Date
June 17, 2005 · 15:45 local
Place
Boca Chica, FL
Phase of flight
Normal Cruise
Operating rules
General operating rules (Part 91)
Damage
Minor damage
Aircraft
N734SK
Reported as
Cessna 172N
Reported engine
Lycoming O320H2AD
People aboard
2
Fatal injuries
0
Pilot’s flight hours
10,000 total2,000 in this make and model150 in the last 90 days
N734SKRegistration cancelled Feb 16, 2017 · Cessna 172NS/N 17269075 · Built 1977Airframe modelCessna 172NEngine modelLycoming 0-320 seriesReciprocating

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) On 17 June 05, at approximately 1500HRS and 35 nautical miles north of key west international airport at an altitude of 5,500 ft, aircraft N734SK engine began to run rough. After communicating with miami center decision is made to turn back to key west. Minutes later engine begins to run rougher with loss in oil pressure. Pilot communicates with miami center and navy approach for closest airport. Pilot reports unable to make airport and decision is made to land aircraft in ocean. Aircraft lands in water and pilot and student evacuate aircraft without injury. Fishing boat rescue pilots. Aircraft N734SK sinks in 25 feet of water. Aircraft is later removed from water by salvage company. On June 23, 2005 inspected aircraft and found the following: inspected engine and found #3 cylinder dislodged from mounting studs - engine casing cracked open approx 8"l x 6"w across just above #3 cylinder area with cam and a connecting rod for #3 piston revealed - cam broken off at #3 cylinder location - connecting rod broke off from #3 piston at attach point at bottom of piston - no prop damage. Review of maintenance records still in progress. Engine approx smoh: 836.20.

As the FAA filed it

(-23) ON 17 JUNE 05, AT APPROXIMATELY 1500HRS AND 35 NAUTICAL MILES NORTH OF KEY WEST INTERNATIONAL AIRPORT AT AN ALTITUDE OF 5,500 FT, AIRCRAFT N734SK ENGINE BEGAN TO RUN ROUGH. AFTER COMMUNICATING WITH MIAMI CENTER DECISION IS MADE TO TURN BACK TO KEY WEST. MINUTES LATER ENGINE BEGINS TO RUN ROUGHER WITH LOSS IN OIL PRESSURE. PILOT COMMUNICATES WITH MIAMI CENTER AND NAVY APPROACH FOR CLOSEST AIRPORT. PILOT REPORTS UNABLE TO MAKE AIRPORT AND DECISION IS MADE TO LAND AIRCRAFT IN OCEAN. AIRCRAFT LANDS IN WATER AND PILOT AND STUDENT EVACUATE AIRCRAFT WITHOUT INJURY. FISHING BOAT RESCUE PILOTS. AIRCRAFT N734SK SINKS IN 25 FEET OF WATER. AIRCRAFT IS LATER REMOVED FROM WATER BY SALVAGE COMPANY. ON JUNE 23, 2005 INSPECTED AIRCRAFT AND FOUND THE FOLLOWING: INSPECTED ENGINE AND FOUND #3 CYLINDER DISLODGED FROM MOUNTING STUDS - ENGINE CASING CRACKED OPEN APPROX 8"L X 6"W ACROSS JUST ABOVE #3 CYLINDER AREA WITH CAM AND A CONNECTING ROD FOR #3 PISTON REVEALED - CAM BROKEN OFF AT #3 CYLINDER LOCATION - CONNECTING ROD BROKE OFF FROM #3 PISTON AT ATTACH POINT AT BOTTOM OF PISTON - NO PROP DAMAGE. REVIEW OF MAINTENANCE RECORDS STILL IN PROGRESS. ENGINE APPROX SMOH: 836.20.