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LAX90LA326 · Piper PA-28-180

19 Sept 1990 · MOUNT WILSON, CA, United States

Piper PA-28-180 · Accident: in flight encounter with weather en route

From Hollywood Burbank/Bob Hope Airport (BUR) to Imperial County Airport (IPL)

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Event

NTSB case
LAX90LA326
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
0
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
Visual Meteorological Cond

Piper PA-28-180

Aircraft type
Piper PA-28
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
N6528J
Onboard fatalities
Unknown
Route
From Hollywood Burbank/Bob Hope Airport (BUR), Burbank, CATo Imperial County Airport (IPL), Imperial, CA
Aircraft age
Not recorded
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
En route · climb to cruise
First occurrenceThe 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
In flight encounter with weather
Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
Visual flight rules (VFR) flight into instrument meteorological conditions (IMC)
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

  • Pilot in command › VFR flight into imc, inadvertent

Approximate · Estimated position: the centre of Mount Wilson, CA, the place the record names. Not the accident site.

NTSB narrative

THE NON-INSTRUMENT RATED 2800-HR PRIVATE PILOT WAS EXPERIENCED IN THE AIRPLANE AND FAMILIAR WITH THE ROUTE OF FLIGHT. THE PILOT OBSERVED THE DARK OVERCAST SKY CONDITIONS IN THE DIRECTION OF HIS PLANNED TRIP, & INDICATED THAT WHILE EN ROUTE IF THE WEATHER DETERIORATED HE WOULD RETURN TO THE DEPARTURE AIRPORT. THE PILOT TOOK OFF UNDER VFR CONDITIONS & HEADED IN AN EASTERLY DIRECTION. EIGHT MIN LATER THE PILOT CONTACTED RADAR & REQUESTED FLIGHT FOLLOWING SERVICE TOWARD HIS EASTERLY DESTINATION. TWO MIN LATER THE AIRPLANE WAS IDENTIFIED ON RADAR, & TWO MIN THEREAFTER RADAR CONTACT WAS LOST. THE LAST FOUR MIN OF RECORDED RADAR SHOWED THAT THE AIRPLANE HAD CLIMBED FROM 2600 FT TO 3500 FEET MSL & HAD TURNED 90 DEG LEFT FROM AN EASTERLY TO A NORTHERLY COURSE. NEARBY WEATHER REPORTING FACILITIES INDICATED THE CLOUD BASE & TOPS WERE RESPECTIVELY 3800 FT & 5700 FT MSL. THE CRASH SITE WAS 4750 FT MSL.

Probable cause

THE PILOT'S INADVERTENT FLIGHT INTO IMC. CONTRIBUTING FACTORS RELATED TO THE PILOT'S FAILURE TO REQUEST IN-FLIGHT WEATHER AVOIDANCE ASSISTANCE AND HIS MISJUDGED EVALUATION OF THE EN ROUTE WEATHER.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record LAX90LA326
Event ID
20001212X24310
Case number
LAX90LA326
Dataset
historical-pre2008
Source SHA-256
89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
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: ff9447af4d527eb3b984366aec8921d5728377c6d979c9c82ef5e8807599d8c0; retrieved 2026-09-21T02:11:20.320Z.