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20030427009349A

Accident · Substantial damage
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FAA accident report · Pilats B4PC11AF · Enumclaw, WA · April 27, 2003

FAA Aviation Safety Information Portal

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Date
April 27, 2003 · 18:35 local
Place
Enumclaw, WA
Airport
Bergeseth Field Airport
Phase of flight
Final Approach
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N159AS
NTSB investigation
NTSBSEA03LA073
Reported as
Pilats B4PC11AF
People aboard
1
Fatal injuries
0
Pilot’s flight hours
95 total14 in this make and model

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 Monday, April 28, 2003, stephan heinrich perrin was flying a Pilatus B4-PC11AF aircraft (glider) in the vicinity of the bergseth field airport (WN76), Enumclaw, WA. While attempting to land the aircraft, it appears that Mr. Perrin did not have sufficient altitude to align the aircraft with runway 10. Mr. Perrin lost positive control of the aircraft and flew into the trees along the south side of runway 10, severely damaging both wings. Mr. Perrin stated during the interview that the normal approach speed for the Pilatus B4-PC11AF aircraft was approximately 60 KTS, and that he normally flew that aircraft on final approach to the runway at 50 to 55 KTS. During this approach Mr. Perrin stated because his approach was low, his airspeed had gotten as low as 40 KTS, but wasn't sure what the airspeed was at impact. Mr. Perrin stated that he did not have enough left rudder to turn the aircraft. The METAR for ksea 272256Z 35008KT 10 sm FEW050 SCT200 16/03 A2993. The METAR for ktcm 272255 36010KT 075M FEW040 SCT200 16/02 A2991.

As the FAA filed it

(-23) ON MONDAY, APRIL 28, 2003, STEPHAN HEINRICH PERRIN WAS FLYING A PILATUS B4-PC11AF AIRCRAFT (GLIDER) IN THE VICINITY OF THE BERGSETH FIELD AIRPORT (WN76), ENUMCLAW, WA. WHILE ATTEMPTING TO LAND THE AIRCRAFT, IT APPEARS THAT MR. PERRIN DID NOT HAVE SUFFICIENT ALTITUDE TO ALIGN THE AIRCRAFT WITH RUNWAY 10. MR. PERRIN LOST POSITIVE CONTROL OF THE AIRCRAFT AND FLEW INTO THE TREES ALONG THE SOUTH SIDE OF RUNWAY 10, SEVERELY DAMAGING BOTH WINGS. MR. PERRIN STATED DURING THE INTERVIEW THAT THE NORMAL APPROACH SPEED FOR THE PILATUS B4-PC11AF AIRCRAFT WAS APPROXIMATELY 60 KTS, AND THAT HE NORMALLY FLEW THAT AIRCRAFT ON FINAL APPROACH TO THE RUNWAY AT 50 TO 55 KTS. DURING THIS APPROACH MR. PERRIN STATED BECAUSE HIS APPROACH WAS LOW, HIS AIRSPEED HAD GOTTEN AS LOW AS 40 KTS, BUT WASN'T SURE WHAT THE AIRSPEED WAS AT IMPACT. MR. PERRIN STATED THAT HE DID NOT HAVE ENOUGH LEFT RUDDER TO TURN THE AIRCRAFT. THE METAR FOR KSEA 272256Z 35008KT 10 SM FEW050 SCT200 16/03 A2993. THE METAR FOR KTCM 272255 36010KT 075M FEW040 SCT200 16/02 A2991.

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 SEA03LA073Accident · No injuriesLimited investigationFinal reportEnumclaw, WAThe pilot's failure to maintain directional control. Contributing factors were the crosswind/tailwind conditions and the trees which the glider impacted.Apr 27, 2003 · Substantial damage