# NTSB NYC84LA257: Gates Learjet 25B, N1JR, Waterville, ME, July 28, 1984

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: July 28, 1984, 15:45 local (19:45 UTC)
- Place: Waterville, ME
- Location: 44.5333° N, 69.6755° W: Placed by OpenAirDocs at WATERVILLE RGNL (WVL), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.5333&lon=-69.6755&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious, 3 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 35722
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC84LA257
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/35722/pdf
- Page: https://openairdocs.org/ntsb/NYC84LA257

## Sequence of events

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

- Overrun, takeoff - roll/run
  - aircraft preflight - inadequate, pilot in command (cause)
  - pitot/static system - blocked(total)
  - airspeed indicator - disregarded, pilot in command (contributing factor)
  - warning system(other) - engaged
  - remedial action - delayed, pilot in command (cause)
  - aborted takeoff - performed, pilot in command
- Complete gear collapsed, takeoff
  - terrain condition - downhill (contributing factor)
  - terrain condition - rough/uneven (contributing factor)
  - landing gear - overload

## Analysis

DURING PREFLIGHT PREPARATION FOR DEPARTURE FROM A SHORT FIELD THE PLT FAILED TO REMOVE THE PITOT TUBE COVERS. ON TAKEOFF ROLL, THE STALL WARNING LIGHT BEGAN TO FLICKER. PLT NOTED AIRSPEED WAS NOT REGISTERING BUT DID NOT CONSIDER THIS UNUSUAL IN THE EARLY PART OF A TAKEOFF ROLL. PLT TURNED LEFT STALL WARNING SWITCH OFF, THEN BACK ON, WARNING LIGHT REMAINED ON. PLT THEN INITIATED ABORT PROCEDURES, USING FULL REVERSE THRUST AND BRAKES. THE ACFT OVERRAN RUNWAY BY ABOUT 100 FT AND DOWN A ROUGH EMBANKMENT WHICH SEPARATED THE LANDING GEAR.

## Aircraft

- Registration: N1JR (not matched to a registry record)
- Reported make and model: Gates Learjet 25B
- Category: Airplane
- Serial number: 188
- Airframe hours: 3168
- Engines: GE 610 2950 lbs thrust turbo jet
- Damage: Substantial damage
- Flight: Part 135
- Registered owner: Panarama Flight Service, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, March 27, 1984, 71 hours before
- Departed: WVL, WATERVILLE, ME
- Destination: HPN, WHITE PLAINS, NY
- Flight plan: IFR
- Airport: WVL, Lafleur, runway 5, 5,000 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 61; airline transport; airplane ratings: multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 10,440 total, 375 in this make and model, 7,542 as pilot in command, 76 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 45° at 18 knots
- Visibility: 6 statute miles
- Temperature: 72 °F, dew point 55 °F
- Altimeter: 30.00 inHg
- Observed at: AUG

## 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 19840728035989A](https://openairdocs.org/incident/19840728035989A), Jul 28, 1984: Lear 25B, Waterville, ME, Substantial damage. No airspeed on takeoff roll. Aborted but overran the runway. Copilot had neglected to remove pitot static covers.

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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