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NTSB Report
February 12, 2012 · Piper PA-18-135 · N1155C
Concrete, WA
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
February 12, 2012
Injury Outcomes
1 injury (1 minor injury), 1 uninjured
Location
Concrete, WA
Aircraft
Piper PA-18-135
Tail Number
N1155C
Operator
Kyle Martin
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
WPR12CA102
The pilot reported that while flying, he observed injured snowmobilers waving for help. After radioing for assistance, the pilot gathered emergency supplies from within the airplane and prepared to air-drop the supplies to the snowmobilers and configured the airplane for a slow approach over their location. After a successful drop, he applied full power and banked left to avoid terrain. The airplane encountered a downdraft and started to descend with the left wing low. Despite the pilot’s control inputs, the airplane continued to lose altitude until it impacted the glacier below. The airplane’s firewall and both wings were substantially damaged. The pilot reported no mechanical failures or malfunctions that would have precluded normal flight.
NTSB Probable Cause
Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Altitude-Not attained/maintained - C
Full Narrative
The pilot reported that while flying, he observed injured snowmobilers waving for help. After radioing for assistance, the pilot gathered emergency supplies from within the airplane and prepared to air drop the supplies to the snowmobilers and configured the airplane for a slow approach over their location. After a successful drop, he applied full power and banked left to avoid terrain. The airplane encountered a downdraft and started to descend with the left wing low. Despite the pilot’s control inputs, the airplane continued to lose altitude until it impacted the glacier below. The airplane’s firewall and both wings were substantially damaged. The pilot reported no mechanical failures or malfunctions that would have precluded normal flight.
Flight
Event TypeAccident
Event Time17:20 PST
Nearest AirportMears Field Airport (13nm)
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-18-135
Tail NumberN1155C
Aircraft CategoryAir
DamageSubstantial
OperatorKyle Martin
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320 SERIES · Reciprocating · 140
Seats2
People & Injuries
Injury Summary1 injury (1 minor injury), 1 uninjured
Fatal0
Serious0
Minor1
Uninjured1
Total2
Crew 1Age 28 · First Class · Minor
Conditions
ConditionsVMC
LightDaylight
Wind180° @ 10 kt
Visibility10 sm
CeilingBroken clouds 7000 ft
Temperature / Dew Point50 / 39 C
Altimeter30.11 inHg
Observation Time00:53
Weather SourceWFAC