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ASN Wikibase Occurrence # 59575
Last updated: 20 July 2018
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Date:17-APR-2009
Time:11:15
Type:Silhouette image of generic C421 model; specific model in this crash may look slightly different
Cessna 421B
Owner/operator:Private
Registration: N1935G
C/n / msn: 421B0836
Fatalities:Fatalities: 1 / Occupants: 1
Aircraft damage: Substantial
Category:Accident
Location:Andrews Ave, Oakland Park, Florida -   United States of America
Phase: Initial climb
Nature:Private
Departure airport:Fort Lauderdale, FL (FXE)
Destination airport:Fernandina, FL (55J)
Investigating agency: NTSB
Narrative:
Prior to the accident flight witnesses observed the pilot "haphazardly" pouring oil into the right engine. The pilot then ran the engines at mid-range power for approximately 20 minutes. The airplane subsequently taxied out of the ramp area and departed. Fire was observed emanating from the right engine after rotation. The airplane continued in a shallow climb from the runway, flying low, with the right engine on fire. The airplane then banked right to return to the airport and descended into a residential area. Examination of the right engine revealed an exhaust leak at the No. 4 cylinder exhaust riser flange. Additionally, one of the flange boltholes was elongated, most likely from the resulting vibration. The fuel nozzle and B-nut were secure in the No. 4 cylinder; however, its respective fuel line was separated about 8 inches from the nozzle. No determination could be made as to when the fuel line separated (preimpact or postimpact) due to the impact and postcrash fire damage. Examination of the right engine turbocharger revealed that the compressor wheel exhibited uniform deposits of an aluminum alloy mixture, consistent with ingestion during operation, and most likely from the melting of the aluminum fresh air duct. Additionally, the right propeller was found near the low pitch position, which was contrary to the owner's manual emergency procedure to secure the engine and feather the propeller in the event of an engine fire.
Probable Cause: The pilot's failure to maintain aircraft control and secure the right engine during an emergency return to the airport after takeoff. Contributing to the accident was an in-flight fire of the right engine for undetermined reasons.

Sources:

NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20090417X30037&key=1
https://wtop.com/?nid=104&sid=1652327_
https://flightaware.com/live/flight/N1935G
]Sun Sentinel
https://www.ntsb.gov/ntsb/brief.asp?ev_id=20090417X30037&key=1


Images:


Photo: NTSB

Revision history:

Date/timeContributorUpdates
17-Apr-2009 10:06 slowkid Added
17-Apr-2009 11:58 harro Updated
18-Apr-2009 11:29 harro Updated
24-Apr-2009 01:29 slowkid Updated
24-Mar-2010 13:10 harro Updated [Source]
21-Dec-2016 19:25 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
01-Dec-2017 18:54 ASN Update Bot Updated [Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative]

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