19960907047319A

Accident · Substantial damage

FAA accident report · Cessna 182P · Cahokia, IL · September 7, 1996

Date: September 7, 1996 · 09:40 local
Place: Cahokia, IL
Operating rules: General operating rules (Part 91)
Damage: Substantial damage
Aircraft: N6590M
NTSB investigation: NTSBCHI96LA328
Reported as: Cessna 182P

N6590MRegistered now · Cessna 182PS/N 18263768 · Built 1975 Airframe modelCessna 182P Engine modelContinental O-470 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.

(-16) The oil filler cap was improperly reinstalled after the engine oil was changed. The pilot checked that the cap was installed but failed to determine that it was properly secured. The cap is secured to the filler neck by a chain attached to a metal ring. If the cap is not placed on the filler neck properly, the chain only allows the cap to turn a small amount-not enough to allow it to lock into position which is identified by a detent. This design allowed the cap to appear tight during the preflight check but while taxiing the cap loosened until finally coming completely off after takeoff resulting in the loss of the engine oil. An m or d report is being prepared concerning this style of cap. The substantial damage to the aircraft and the damage to the taxiway lights was a direct result of the decisions and procedures the pilot implemented or failed to implement during the incident.privacy data omitted

As the FAA filed it

(-16) THE OIL FILLER CAP WAS IMPROPERLY REINSTALLED AFTER THE ENGINE OIL WAS CHANGED. THE PILOT CHECKED THAT THE CAP WAS INSTALLED BUT FAILED TO DETERMINE THAT IT WAS PROPERLY SECURED. THE CAP IS SECURED TO THE FILLER NECK BY A CHAIN ATTACHED TO A METAL RING. IF THE CAP IS NOT PLACED ON THE FILLER NECK PROPERLY, THE CHAIN ONLY ALLOWS THE CAP TO TURN A SMALL AMOUNT-NOT ENOUGH TO ALLOW IT TO LOCK INTO POSITION WHICH IS IDENTIFIED BY A DETENT. THIS DESIGN ALLOWED THE CAP TO APPEAR TIGHT DURING THE PREFLIGHT CHECK BUT WHILE TAXIING THE CAP LOOSENED UNTIL FINALLY COMING COMPLETELY OFF AFTER TAKEOFF RESULTING IN THE LOSS OF THE ENGINE OIL. AN M OR D REPORT IS BEING PREPARED CONCERNING THIS STYLE OF CAP. THE SUBSTANTIAL DAMAGE TO THE AIRCRAFT AND THE DAMAGE TO THE TAXIWAY LIGHTS WAS A DIRECT RESULT OF THE DECISIONS AND PROCEDURES THE PILOT IMPLEMENTED OR FAILED TO IMPLEMENT DURING THE INCIDENT.^PRIVACY DATA OMITTED^

NTSB investigation

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

NTSB CHI96LA328Accident · No injuriesLimited investigationFinal reportCahokia, ILthe pilot misjudged his planned approach during the precautionary landing and the failed to obtain a proper touchdown point. Factors relating to the accident were: the loose oil filler cap, the uneven terrain on which the landing was made, the runway lights…Sep 7, 1996 · Substantial damage