19970916026889I

Incident · Substantial damage

FAA incident report · Cessna A188B · Holcomb, MS · September 16, 1997

Date: September 16, 1997 · 15:15 local
Place: Holcomb, MS
Phase of flight: Low Level Operations
Operating rules: Agricultural (Part 137)
Operator: LUVG
Damage: Substantial damage
Aircraft: N4839R
Reported as: Cessna A188B
Reported engine: Continental IO520D
People aboard: 1
Fatal injuries: 0
Pilot’s flight hours: 14,000 total600 in this make and model150 in the last 90 days

N4839RRegistration cancelled Nov 25, 2003 · Cessna A188BS/N 18802358T · Built 1975 Airframe modelCessna A188B Engine modelContinental IO-520 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.

Narrative: during aerial application operations the pilot observed the oil temperature gauge at max temp red line. He reduced engine power to 23" manifold pressure and 2300 RPM. The oil temp reduced below red line slightly. Pilot then heard a loud pop followed by the engine running rough and smoke coming into the cockpit. An emergency landing was conducted and during rollout the aircraft collided with trees. The #6 engine cylinder was found separated at the lower skirt. #6 engine cylinder failed at separation between upper and lower cooling fins. Inspection showed signs of exhaust leakage around forward edge of cylinder indicating partial failure sometime before separation cylinder had occurred.

As the FAA filed it

NARRATIVE: DURING AERIAL APPLICATION OPERATIONS THE PILOT OBSERVED THE OIL TEMPERATURE GAUGE AT MAX TEMP RED LINE. HE REDUCED ENGINE POWER TO 23" MANIFOLD PRESSURE AND 2300 RPM. THE OIL TEMP REDUCED BELOW RED LINE SLIGHTLY. PILOT THEN HEARD A LOUD POP FOLLOWED BY THE ENGINE RUNNING ROUGH AND SMOKE COMING INTO THE COCKPIT. AN EMERGENCY LANDING WAS CONDUCTED AND DURING ROLLOUT THE AIRCRAFT COLLIDED WITH TREES. THE #6 ENGINE CYLINDER WAS FOUND SEPARATED AT THE LOWER SKIRT. #6 ENGINE CYLINDER FAILED AT SEPARATION BETWEEN UPPER AND LOWER COOLING FINS. INSPECTION SHOWED SIGNS OF EXHAUST LEAKAGE AROUND FORWARD EDGE OF CYLINDER INDICATING PARTIAL FAILURE SOMETIME BEFORE SEPARATION CYLINDER HAD OCCURRED.