# NTSB LAX86LA252: Piper PA-28-181, N8156E, Glendale, AZ, June 15, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 14, 1986, 17:45 local (Jun 15, 1986, 00:45 UTC)
- Place: Glendale, AZ
- Coordinates: 33.47013, -112.190116 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.4701&lon=-112.1901&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 25181
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX86LA252
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/25181/pdf
- Page: https://openairdocs.org/ntsb/LAX86LA252

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Airframe/component/system failure/malfunction, takeoff - roll/run
  - flight/nav instruments,airspeed indicator - incorrect (contributing factor)
  - pitot/static system - blocked(partial) (cause)
  - aircraft preflight - improper, pilot in command (cause)
- Overrun, takeoff - roll/run
  - airspeed - improper
  - aborted takeoff - performed, pilot in command (cause)

## Analysis

THE PILOT SAID THAT DURING THE TAKEOFF ROLL ON THE 2,400 FOOT LONG RUNWAY HE NOTICED THE AIRCRAFT ACELERATION WAS SLOW AND THE AIRSPEED WAS STILL BELOW 55 KTS AT 3/5 OF THE WAY DOWN THE RUNWAY AND HE ELECTED TO ABORT THE TAKEOFF. THE AIRCRAFT OVERRAN THE END OF THE RUNWAY, ACROSS A ROAD AND COLLIDED WITH POLES BEFORE THE PILOT COULD STOP THE AIRCRAFT. EXAMINATION OF THE PITOT-STATIC SYSTEM REVEALED THAT THE STATIC PORT WAS COMPLETELY CLOGGED BY A GUMMY SUBSTANCE AND THE PITOT PORT WAS PARTIALLY CLOGGED BY A COILED LEAF. FUNCTIONAL TESTING OF THE PITOT-STATIC SYSTEM AFTER CLEANING WAS SATISFACTORY.

## Aircraft

- Registration: N8156E (not matched to a registry record)
- Reported make and model: PIPER PA-28-181
- Category: Airplane
- Serial number: 28-8290102
- Airframe hours: 1193
- Engines: LYCOMING O-360-A4M 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Aztec Aviation
- Registered owner: Calvert C. Zethraeus
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, March 6, 1986, 111 hours before
- Airport: P37, Glendale Muni, runway 17, 2,400 × 50 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 23; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 111 total, 3 in this make and model, 51 as pilot in command, 31 in the last 90 days, 12 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 290° at 9 knots
- Visibility: 35 statute miles
- Lowest ceiling: none
- Temperature: 108 °F, dew point 43 °F
- Altimeter: 29.00 inHg
- Observed at: PHX

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19860614029519A](https://openairdocs.org/incident/19860614029519A), Jun 14, 1986: Piper PA28181, Glendale, AZ, Substantial damage. The aircraft overran the runway during abort. The pitot and static systems were blocked affecting airspeed readout.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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