# NTSB NYC88IA067: Mitsubishi MU-2B-35, N349MA, Teterboro, NJ, January 20, 1988

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: January 20, 1988, 07:15 local (12:15 UTC)
- Place: Teterboro, NJ
- Location: 40.8546° N, 74.0596° W: Placed by OpenAirDocs: center of Teterboro, NJ, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.8546&lon=-74.0596&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report January 25, 1990
- Report: Approved by Office Director
- NTSB case key (mKey): 36018
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC88IA067
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/36018/pdf
- Page: https://openairdocs.org/ntsb/NYC88IA067

## Sequence of events

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

- Altitude deviation,uncontrolled, climb - to cruise
  - autopilot - improper use of, copilot/second pilot (cause)
  - procedures/directives - not followed, copilot/second pilot (cause)

## Analysis

THE MU-2 MADE A DEPARTURE AND WHILE CLIMBING THROUGH APPROXIMATELY 800 FT AGL, THERE WAS AN INADVERTENT AUTO-PILOT ENGAGEMENT. THE NOSE PITCHED DOWN AND RIGHT. BOTH PILOTS GOT ON THE CONTROLS AND CONTROL WAS MAINTAINED. A NORMAL LANDING WAS MADE AT THE POINT OF DEPARTURE. THE FLIGHT CREW DID NOT USE STANDARD AUTO-PILOT DISENGAGEMENT PROCEDURES.

## Aircraft

- Registration: N349MA (not matched to a registry record)
- Reported make and model: MITSUBISHI MU-2B-35
- Category: Airplane
- Serial number: 31667985054
- Engines: GARRETT TPE-331 705 horsepower turbo prop
- Damage: No damage
- Flight: Part 135
- Operator: Epps Air
- Registered owner: Epps Air Service
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, January 10, 1988
- Departed: TEB, TETERBORO, NJ
- Destination: PNE, NO.PHILADELPHIA, PA
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 35; airline transport; airplane ratings: multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: right; flight hours: 4,200 total, 620 in this make and model, 3,700 as pilot in command, 400 in the last 90 days, 3 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Day
- Wind: 250° at 8 knots
- Visibility: 6 statute miles
- Lowest ceiling: 1,300 ft overcast
- Temperature: 45 °F
- Altimeter: 30.00 inHg
- Observed at: TEB

## 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 19880120002119A](https://openairdocs.org/incident/19880120002119A), Jan 20, 1988: Mtsbsi MU2B35, Teterboro, NJ

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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