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ASN Wikibase Occurrence # 36680
Last updated: 30 September 2019
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Date:31-MAR-1989
Time:08:35
Type:Silhouette image of generic AEST model; specific model in this crash may look slightly different
Piper PA-60-601P
Owner/operator:Anthony Deis
Registration: C-GWPS
C/n / msn: 61P-0522-219
Fatalities:Fatalities: 5 / Occupants: 5
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:Newport Beach, CA -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Private
Departure airport:(SNA)
Destination airport:Pocatello, ID (PIH)
Investigating agency: NTSB
Narrative:
SVRL MECHANIC WITNESSES AT THE airport SAID THE RGT ENG BACKFIRED & TRAILED BLACK SMOKE DURING THE TAKEOFF GROUND ROLL. RPRTDLY, THE TAKEOFF ROLL WAS ABOUT 80% LONGER THAN NORMAL. WITNESSES SAID THE ACFT STAGGERED OFF THE GROUND, WAS SLOW & NEVER GOT ABOVE 100 FEET AGL. THE PLT RPRTD TO THE TOWER THAT THE FLT HAD TO COME BACK TO THE RWY. SHORTLY THEREAFTER, WITNESSES SAW THE ACFT ENTER A STEEP LEFT TURN, APPARENTLY STALL, THEN CRASH INTO SOME TENNIS COURTS. AN INVESTIGATION REVEALED EVIDENCE THAT THE RGT ENG HAD LOST POWER. A MODIFICATION KIT FOR THE FUEL INJECTOR REFERENCE AIR LINES WAS INCORRECTLY INSTALLED & ALLOWED AN UNFILTERED AIR SOURCE. SPECTRAL ANALYSIS OF RESIDUE (FROM THE RGT ENG TURBO CHARGER COMPRESSOR) REVEALED THAT IT HAD THE SAME COMPOSITION AS THE ALTERNATE AIR DOOR SEAL. TRACES OF THE MATERIAL WERE FOUND IN THE FUEL INJECTOR REFERENCE AIR LINE. CAUSE: FAILURE OF THE PILOT TO ATTAIN ADEQUATE AIRSPEED BEFORE MANEUVERING (TURNING) BACK TOWARD THE AIRPORT, WHICH RESULTED IN A LOSS OF AIRCRAFT CONTROL. A FACTOR RELATED TO THE ACCIDENT WAS: IMPROPER MAINTENANCE/INSTALLATION OF A FUEL INJECTOR REFERENCE AIR LINE, WHICH ALLOWED CONTAMINATION OF THE INJECTORS AND LOSS OF POWER IN THE RIGHT ENGINE.

Sources:

NTSB: https://www.ntsb.gov/ntsb/brief.asp?ev_id=20001213X27912


Revision history:

Date/timeContributorUpdates
24-Oct-2008 10:30 ASN archive Added

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