# NTSB CHI87DET01: Pitts S1S, N39XP, Warsaw, IN, December 21, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: December 21, 1986, 09:00 local (14:00 UTC)
- Place: Warsaw, IN
- Coordinates: 41.229587, -85.849075 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.2296&lon=-85.8491&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 13594
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI87DET01
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13594/pdf
- Page: https://openairdocs.org/ntsb/CHI87DET01

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - directional control - not maintained, pilot in command (cause)
  - lack of total experience in type of aircraft, pilot in command (contributing factor)
  - remedial action - attempted, pilot in command
  - ground loop/swerve - uncontrolled, pilot in command (cause)
- On ground/water encounter with terrain/water, landing - roll
- Nose down, landing - roll

## Analysis

ACCORDING TO THE PILOT AFTER TOUCHDOWN THE RIGHT BRAKE SEEMED TO LOCK UP WITH A 'SKIDDING' NOISE AS THE AIRCRAFT LEFT THE RUNWAY. THE PILOT STATED HE WAS HAVING DIFFICULTY KEEPING HIS TOES OFF THE BRAKES AS HE WAS ATTEMPTING TO MAINTAIN DIRECTIONAL CONTROL. THE AIRCRAFT CAME TO A REST, NOSE DOWN, ON THE SIDE OF THE RUNWAY.

## Aircraft

- Registration: [N39XP](https://openairdocs.org/aircraft/N39XP), registered now, S/N K-039, built 1976 (OpenAirDocs)
- Reported make and model: PITTS S1S
- Registry model: [Kucki Nick J PITTS S-1S](https://openairdocs.org/model/kucki-nick-j-pitts-s-1s) (registry code 72206BM) (OpenAirDocs)
- Registry engine: [Lycoming AEIO-360 series](https://openairdocs.org/engine/lycoming-aeio-360-series) (registry code 41522, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: K-039
- Airframe hours: 52
- Engines: LYCOMING AEIO-360-B4A 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Zeemack Aircraft Sales Inc.
- Airworthiness certificate: Standard, Aerobatic
- Last inspection: Annual, June 12, 1986, 4 hours before
- Departed: ASW, WARSAW, IN
- Airport: ASW, Warsaw Municipal, runway 36, 4,000 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 39; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; flight hours: 338 total, 15 in this make and model, 276 as pilot in command, 11 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 50° at 4 knots
- Visibility: 4 statute miles
- Lowest ceiling: none
- Temperature: 25 °F, dew point 19 °F
- Altimeter: 30.00 inHg
- Observed at: SBN, 34 nm away

## 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 19861221077279A](https://openairdocs.org/incident/19861221077279A), Dec 21, 1986: Child S1SPITTS, Warsaw, IN, Substantial damage. The aircraft veered off the runway during landing. Pilot reported difficulty keeping feet off brakes.

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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