# NTSB SEA84LA085: Grumman American AA-5B, N28291, Driggs, ID, April 15, 1984

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: April 15, 1984, 07:30 local (14:30 UTC)
- Place: Driggs, ID
- Coordinates: 43.730796, -111.220024 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.7308&lon=-111.2200&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 39897
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA84LA085
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/39897/pdf
- Page: https://openairdocs.org/ntsb/SEA84LA085

## Sequence of events

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

- Hard landing, landing - flare/touchdown
  - flare - improper, pilot in command (contributing factor)
  - recovery from bounced landing - performed, pilot in command
- In flight collision with terrain/water, landing
  - go-around - improper, pilot in command (cause)
  - lack of total experience in type of aircraft, pilot in command (contributing factor)
  - weather condition - high density altitude (contributing factor)
  - carburetor heat - improper use of, pilot in command (contributing factor)
  - raising of flaps - not performed, pilot in command (contributing factor)
  - proper climb rate - not attained, pilot in command
  - terrain condition - high obstruction(s) (contributing factor)
  - maneuver - performed, pilot in command
  - terrain condition - snow covered (contributing factor)
  - clearance - not maintained, pilot in command (cause)

## Analysis

DURING A LANDING, THE PLT ENCOUNTERED A PORPOISE WHICH INCREASED IN SEVERITY. HE ADDED FULL POWER, RAISED THE NOSE & INITIATED A GO-AROUND, DURING WHICH, THE STALL WARNING HORN SOUNDED. THE PLT REPORTED THAT HE LEFT THE CARBURETOR HEAT ON & LEFT THE FLAPS IN A 2/3 EXTENEDED POSTION. AS HE CONTINUED THE GO-AROUND, HE MANUEVERED THE ACFT TO AVOID HITTING A POLE. IMMEDIATELY THEREAFTER, THE LEFT WING TIP STRUCK SNOW COVERED GROUND & THE ACFT CARTWHEELED TO A STOP. THE ELEVATION OF THE ARPT WAS 6202 FT. THE PLT HAD RECENTLY RECEIVED HIS PRIVATE PLT CERTIFICATE & HAD JUST CHECKED OUT IN THIS MAKE & MODEL OF ACFT.

## Aircraft

- Registration: [N28291](https://openairdocs.org/deregistered/N28291-2011-12-05), registration cancelled 2011-12-05, S/N AA5B0531, built 1977 (OpenAirDocs)
- Reported make and model: GRUMMAN AMERICAN AA-5B
- Registry model: [Grumman American Avn. AA-5B](https://openairdocs.org/model/grumman-american-avn-aa-5b) (registry code 3960105) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: AA5B0531
- Airframe hours: 1240
- Engines: LYCOMING O-360-A4K 180 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Operator: Rocky Mountain Flying Club
- Registered owner: Elden Corry
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, January 8, 1984, 24 hours before
- Departed: PVU, PROVO, UT
- Destination: U59
- Flight plan: VFR
- Airport: U59, Driggs Muni, runway 3, 5,200 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 28; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 61 total, 3 in this make and model, 9 in the last 90 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 25 °F, dew point 19 °F
- Altimeter: 30.00 inHg
- Observed at: JAC, 18 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 19840415013559A](https://openairdocs.org/incident/19840415013559A), Apr 15, 1984: Gulstm AA5B, Driggs, ID, Destroyed. Aircraft porpoised during landing and pilot attempted go around but wing hit ground causing cartwheel type crash.

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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