# Accident 20020617011549A: Grumav G21, Northway, AK, June 17, 2002

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: June 17, 2002, 12:04 local time
- Place: Northway, AK
- Airport: Northway Airport
- Damage: No damage
- Operating rules: General operating rules (Part 91)
- Location: 61.7391° N, 148.2195° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=61.7391&lon=-148.2195&mi=10
- Aircraft: N21A, registered now (https://openairdocs.org/aircraft/N21A) (OpenAirDocs)
- Registry model: Grumman G-21A (registry code 3951204, https://openairdocs.org/model/grumman-g-21a) (OpenAirDocs)
- Registry engine: Amateur-built UNKNOWN ENG (registry code 99999, https://openairdocs.org/engine/amateur-built-unknown-eng) (OpenAirDocs)
- Reported make and model: GRUMAV G21
- NTSB investigation: [NTSB ANC02LA052](https://openairdocs.org/ntsb/ANC02LA052) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20020617011549A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(.19) ON JUNE 17, 2002, ABOUT 1204 ALASKA DAYLIGHT TIME, AN AMPHIBIOUS GRUMMAN GOOSE G-21 AIRPLANE, N21A, SUSTAINED SUBSTANTIAL DAMAGE DURING LANDING AT THE NORTHWAY AIRPORT, NORTHWAY, ALASKA. THE AIRPLANE WAS BEING OPERATED AS A VISUAL FLIGHT RULES (VFR) CROSS-COUNTRY PERSONAL FLIGHT UNDER TITLE 14, CFR PART 91, WHEN THE ACCIDENT OCCURRED. THE CERTIFICATED PRIVATE PILOT AND THE TWO PASSENGERS WERE NOT INJURED. VISUAL METEOROLOGICAL CONDITIONS PREVAILED, AND AN IFR FLIGHT PLAN WAS IN EFFECT. THE FLIGHT ORIGINATED AT 1102, FROM THE WHITEHORSE INTERNATIONAL AIRPORT, WHITEHORSE, YUKON, CANADA. DURING A TELEPHONE CONVERSATION WITH THE NATIONAL TRANSPORTATION SAFETY BOARD INVESTIGATOR-IN-CHARGE ON JUNE 17, THE PILOT REPORTED THAT WHILE ON APPROACH FOR LANDING ON RUNWAY 22, HE ENCOUNTERED WINDS ESTIMATED TO BE FROM 270 DEGREES AT 10 KNOTS, WHICH REQUIRED A RIGHT CROSSWIND CORRECTION. HE SAID THAT AFTER TOUCHDOWN, DURING THE LANDING ROLL, THE AIRPLANE VEERED TO THE LEFT. THE AIRPLANE ULTIMATELY GROUND LOOPED TO THE LEFT, ROLLED DOWN AN EMBANKMENT, AND CAME TO REST IN AN AREA THAT CONTAINED TREES. THE AIRPLANE SUSTAINED SUBSTANTIAL DAMAGE TO THE RIGHT WING AND RIGHT HORIZONTAL STABILIZER. THE PILOT REPORTED THAT THERE WERE NO PREACCIDENT ANOMALIES WITH THE AIRPLANE. (-23) ^PRIVACY DATA OMITTED^       AFTER LANDING AT NORTHWAY AIRPORT ON RUNWAY 22, MR. TUTHILL ENCOUNTERED A STRONG RIGHT CROSSWIND. THE CROSSWIND RAISED THE RIGHT WIND TO THE POINT THAT THE AIRCRAFT WAS ONLY ON THE LEFT MAIN GEAR AND THE TAILWHEEL. MR. TUTHILL ATTEMPTED TO CONTROL THE AIRCRAFT WITH RUDDER AND DIFFERENTIAL POWER. AS THE AIRCRAFT CORRECTED TO THE RIGHT AND BECAME REALIGNED WITH THE RUNWAY, MR. TUTHILL REDUCED THE POWER ON THE LEFT ENGINE. AGAIN THE CROSSWIND RAISED THE RIGHT WING AND MR. TUTHILL WAS UNABLE TO MAINTAIN CONTROL. THE AIRCRAFT PROCEEDED TO TURN LEFT AND EXITED THE RUNWAY AND CAME TO REST IN THE BRUSH AND WILLOWS ALONG THE SOUTHEAST PORTION OF THE RUNWAY. THE AIRCRAFT RECEIVED MINOR DAMAGES AND THERE WERE NO INJURIES TO THE PILOT OR THE TWO PASSENGERS.

## The NTSB's investigation of this event (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 ANC02LA052](https://openairdocs.org/ntsb/ANC02LA052), Jun 17, 2002: Grumman G-21 (N21A), Northway, AK, substantial damage. Probable cause: The pilot's inadequate compensation for wind conditions during the landing roll, which resulted in an inadvertent ground loop/swerve. A factor associated with the accident was a crosswind.

## Other reports on N21A (1)

Matched to the same aircraft by N-number and date.

- [Accident 20080129831379A](https://openairdocs.org/incident/20080129831379A), Jan 29, 2008: Grumav G21A (N21A), Marathon, FL, Destroyed. (-23) Aircraft impacted the ocean causing it to flip. Aircraft was destroyed during the landing attempt.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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