# NTSB MKC86LA171: Piper PA-23-150, N1130P, Iowa City, IA, July 5, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 5, 1986, 12:00 local (17:00 UTC)
- Place: Iowa City, IA
- Coordinates: 41.649604, -91.529624 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.6496&lon=-91.5296&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 34232
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC86LA171
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34232/pdf
- Page: https://openairdocs.org/ntsb/MKC86LA171

## Sequence of events

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

- Loss of engine power(partial) - nonmechanical, takeoff - initial climb
  - throttle/power control - improper use of, dual student (cause)
  - lack of total experience in kind of aircraft, dual student (contributing factor)
  - procedures/directives - not followed, dual student (contributing factor)
  - inattentive, pilot in command(cfi) (contributing factor)
  - in-flight planning/decision - delayed, pilot in command(cfi) (contributing factor)
- Forced landing, takeoff - initial climb
  - aircraft performance,engine out capability - deteriorated (contributing factor)
  - remedial action - not followed, dual student (cause)
  - remedial action - not followed, pilot in command(cfi)
- Hard landing, landing

## Analysis

THE FLIGHT INSTRUCTOR STATED THAT HE HAD PLANNED TO CONDUCT AN ENGINE-OUT DRILL AFTER TAKEOFF BY REDUCING POWER TO THE STARBOARD ENGINE. DURING THE ENGINE-OUT DRILL THE STUDENT REDUCED POWER TO THE OPERATING ENGINE AND THE AIRCRAFT LANDED HARD BACK ON THE RUNWAY BEFORE THE CFI COULD TAKE REMEDIAL ACTION.

## Aircraft

- Registration: [N1130P](https://openairdocs.org/deregistered/N1130P-1989-06-08), registration cancelled 1989-06-08, S/N 23140 (OpenAirDocs)
- Reported make and model: PIPER PA-23-150
- Registry model: [Piper PA-23](https://openairdocs.org/model/piper-pa-23) (registry code 7102302) (OpenAirDocs)
- Category: Airplane
- Serial number: 23-140
- Airframe hours: 3200
- Engines: LYCOMING O-320-3B 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: Pn Corporation
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, June 30, 1986, 15 hours before
- Airport: IOW, Iowa City, runway 17, 4,299 × 150 ft, concrete

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 22; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: right; flight hours: 1,150 total, 50 in this make and model, 1,000 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 25 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 86 °F, dew point 72 °F
- Altimeter: 29.00 inHg
- Observed at: CID, 17 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 19860705039519A](https://openairdocs.org/incident/19860705039519A), Jul 5, 1986: Piper PA23, Iowa City, IA, Substantial damage. The student reduced power on the wrong engine on takeoff and the aircraft landed hard. Low time instructor.

## Other investigations on N1130P (1)

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.

- [NTSB IAD74FLT05](https://openairdocs.org/ntsb/IAD74FLT05), Aug 20, 1973: Piper PA-23 (N1130P), Memphis, TN, substantial damage

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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