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WPR16FA042 · Piper PA32R 301T

22 Dec 2015 · Castro Valley, CA, United States

Piper PA32R 301T · Accident: loss of control in flight on approach

From Lincoln Regional Karl Harder Field (LHM) to Oakland San Francisco Bay Airport (OAK)

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Event

NTSB case
WPR16FA042
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
API-reported fatalities
1 · all aircraft and ground
Ground fatalities
Unknown
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
General aviation
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Instrument Meteorological Cond

Piper PA32R 301T

Aircraft type
Piper PA32
Category
Airplane
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N323PA
Operator
Unknown
Onboard fatalities
Unknown
Route
From Lincoln Regional Karl Harder Field (LHM), Lincoln, CATo Oakland San Francisco Bay Airport (OAK), Oakland, CA
Aircraft age
About 14 years (built 2001)
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 91: General Aviation
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
Approach · IFR missed approach
Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Loss of control in flight
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Destroyed

Cause areas

  • Aircraft › Aircraft oper/perf/capability
  • Environmental issues › Conditions/weather/phenomena
  • Personnel issues › Psychological
  • Personnel issues › Task performance

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

The instrument-rated private pilot was operating the airplane on an instrument flight rules flight in instrument meteorological conditions (IMC). As the airplane neared the destination airport, the controller cleared the pilot for the instrument landing system (ILS) approach, instructed him to descend to 3,400 ft mean sea level (msl), and provided him with a heading to intercept the localizer course. The pilot acknowledged the clearance and began descending the airplane, but did not initiate the turn. About 30 seconds later, the controller again instructed the pilot to turn to intercept the localizer course. The pilot complied, turned west, and began tracking toward the airport south of the localizer course. The controller asked the pilot whether the airplane was established on the localizer, to which the pilot replied, "I'm re-establishing." Shortly thereafter, the controller asked the pilot if he was receiving the glideslope indication for the approach. The pilot confirmed that he was receiving the glideslope, but stated that he was "off glideslope" and "too high." However, at this time, the airplane was 800 ft below the minimum altitude for that segment of the approach (3,400 ft msl). The controller issued a low altitude alert, cancelled the approach clearance, and instructed the pilot to turn north and climb. The pilot acknowledged; however, the airplane turned south and did not climb. The controller again issued the pilot instructions to turn and climb, and the airplane began to turn north and climb before subsequently entering a descent. Shortly thereafter, the pilot stated, "I'm losing it." No further transmissions were received from the pilot, and radar contact was lost in the vicinity of the accident site.

The airplane impacted heavily-wooded terrain about 12 nautical miles southeast of the destination airport, at an elevation about 1,400 ft.

Postaccident examination of the airplane revealed heavy fragmentation consistent with a high-energy impact as well as evidence of a postimpact fire. Examination of the airframe, flight controls, and the engine revealed no evidence of any preimpact mechanical failures or anomalies. Although the extensive damage precluded examination of the primary vacuum pump and functional testing of the autopilot system, it is unlikely these components malfunctioned because before beginning the approach, the pilot experienced no difficulty complying with air traffic control-assigned altitudes and headings, and, throughout the flight, he gave no indication that he was experiencing problems with the flight controls, flight instruments, or autopilot. Based on weather data and the pilot's radio communication that he was "in the weather," the airplane was operating in IMC throughout the approach. When issued instructions to execute a missed approach, the pilot experienced a high workload that involved changes to the airplane's heading, altitude, and likely, configuration; this situation was conducive to the development of spatial disorientation. The pilot likely recognized the onset of spatial disorientation as evidenced by his statement to the controller, "I'm losing it;" however, the pilot was unable to make the appropriate corrective inputs before losing control of the airplane.

Probable cause

The pilot's loss of control due to spatial disorientation while maneuvering during an instrument approach in instrument meteorological conditions.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record WPR16FA042
Event ID
20151222X03629
Case number
WPR16FA042
Dataset
full-current
Source SHA-256
5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: ef97c6b2823be53fbab96066104651db103311b3e2a6ed03b5bb3f92f589c93b; retrieved 2026-09-14T21:35:59.631Z.