# NTSB SEA91LA253: Cessna 172N, N9403E, Chiloquin, OR, September 26, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 26, 1991, 09:40 local (16:40 UTC)
- Place: Chiloquin, OR
- Coordinates: 42.999816, -121.630554 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.9998&lon=-121.6306&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report May 7, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 41550
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA91LA253
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41550/pdf
- Page: https://openairdocs.org/ntsb/SEA91LA253

## Probable cause

THE LOSS OF ENGINE POWER IN FLIGHT DUE TO IMPROPER MAINTENANCE INSPECTIONS. A FACTOR RELATING TO THE ACCIDENT WAS THE ROUGH TERRAIN AT THE ACCIDENT SITE.

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, cruise - normal
  - ignition system,ignition points - worn (cause)
  - maintenance,100-hour inspection - improper, other maintenance personnel (cause)
- Forced landing, descent - emergency
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - rough/uneven (contributing factor)

## Analysis

THE ACFT ENGINE LOST PWR IN CRUISE FLT.  THE PILOT MADE A FORCED LANDING AND THE ACFT IMPACTED ROUGH TERRAIN DURING LANDING GRD ROLL.  INSP OF THE ACFT REVEALED THE IGN POINTS WOULD NOT OPEN AND THE MAG WOULD NOT PRODUCE SPARK.  BOTH MAG POINT CAM FOLLOWERS WERE WORN EXCESSIVELY FROM LACK OF LUBRICATION.

## Aircraft

- Registration: [N9403E](https://openairdocs.org/deregistered/N9403E-1994-04-21), registration cancelled 1994-04-21, S/N 17272251 (OpenAirDocs)
- Reported make and model: CESSNA 172N
- Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (registry code 2072434) (OpenAirDocs)
- Category: Airplane
- Serial number: 17272251
- Engines: LYCOMING O-320-H2AD 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Leslie E. Jantzer
- Registered owner: Leslie E. Jantzer
- Airworthiness certificate: Standard, Normal
- Departed: 3S8, GRANTS PASS, OR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 59; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; flight hours: 1,044 total, 877 in this make and model, 28 in the last 90 days, 3 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 130° at 5 knots
- Visibility: 25 statute miles
- Lowest ceiling: 25,000 ft broken
- Temperature: 64 °F, dew point 45 °F
- Altimeter: 30.00 inHg
- Observed at: KMT, 21 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 19910926047949A](https://openairdocs.org/incident/19910926047949A), Sep 26, 1991: Cessna 172N, Chiloquin, OR, Substantial damage. Rough engine and power loss. Impactedrough terrain on forced landing. Magneto inop. Cam worn. Lacked lubrication.

## Other investigations on N9403E (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 SEA92LA084](https://openairdocs.org/ntsb/SEA92LA084), Apr 26, 1992: Cessna 172N (N9403E), Grants Pass, OR, substantial damage. Probable cause: A FAILURE TO MAINTAIN RUNWAY ALIGNMENT, AND A DELAYED GO-AROUND. FACTORS INCLUDE A CROSSWIND, GUSTS, AND A FENCE IN THE GO-AROUND PATH.

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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