# NTSB CHI95LA272: Grumman G-164, N48611, Wadena, MN, August 13, 1995 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Limited investigation · Final report - Date: August 12, 1995, 20:30 local (Aug 13, 1995, 01:30 UTC) - Place: Wadena, MN - Coordinates: 46.430252, -95.129051 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=46.4303&lon=-95.1291&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Highest injury: Minor injuries - Injuries: 1 minor - Status: Completed, report April 1, 1996 - Report: Approved by Office Director - NTSB case key (mKey): 9989 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI95LA272 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/9989/pdf - Page: https://openairdocs.org/ntsb/CHI95LA272 ## Probable cause the pilot's inattentiveness during the reversal turn, the pilot not maintaining control of the airplane, and the stall/mush encountered by the pilot. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - in flight, maneuvering - turn to reverse direction - aircraft control - not maintained, pilot in command (cause) - inattentive, pilot in command (cause) - stall/mush - encountered, pilot in command (cause) - In flight collision with terrain/water, descent - uncontrolled - terrain condition - ground ## Analysis THE PILOT SAID THE AIRPLANE STALLED WITHOUT WARNING DURING A TURN AROUND MANEUVER AFTER HE HAD JUST FLOWN OVER A FIELD HE INTENDED TO SPRAY. HE SAID HE WAS TOTALLY CAUGHT OFF GUARD BY THE STALL EVENT. THE PILOT ALSO STATED THAT HE DID NOT ADD ENOUGH POWER DURING THE TURN AND THAT THE AIRPLANE WAS MUSHING AND SHAKING DURING THE TURN BECAUSE IT WAS BEHIND THE POWER CURVE. ## Factual narrative On August 12, 1995, at 2030 central daylight time (cdt), a Grumman G-164, N48611, piloted by a commercial pilot, was substantially damaged during a collision with the ground while maneuvering for a swath run. Visual meteorological conditions prevailed at the time of the accident. The 14 CFR Part 137 flight was not operating on a flight plan. The pilot reported minor injuries. The flight departed Wadena, Minnesota, at 2000 cdt. According to the pilot's written statement on NTSB Form 6120.1/2, "...the aircraft stalled without warning..." during a turn back maneuver. The pilot continued, "I started a recovery but ran out of altitude... ." He said he had just flown over the field he intended to spray and was about two-thirds the way through the turn when the event took place. During an interview the pilot said he was totally caught off guard by the stall event. He said the control feel did not tell him of the impending stall. An FAA Principal Maintenance Inspector (PMI) represented the NTSB on-scene. According to the PMI, the pilot told him he had not added enough power to the airplane's engine until it was mushing and shaking during the turn around maneuver. He said the pilot indicated the airplane was behind the power curve during the turning maneuver. ## Aircraft - Registration: [N48611](https://openairdocs.org/deregistered/N48611-2019-09-06), registration cancelled 2019-09-06, S/N 91B, built 1976 (OpenAirDocs) - Reported make and model: GRUMMAN G-164 - Registry model: [Grumman Acft ENG Cor-Schweizer G-164B](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164b) (registry code 3952802) (OpenAirDocs) - Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 91B - Engines: P&W R1340 600 horsepower reciprocating - Damage: Substantial damage - Flight: Aerial application, Part 137 - Operator: Peterson Aerial Spraying - Registered owner: Kyle J. Scott - Airworthiness certificate: Special, Restricted (Special) - Departed: 64Y, MN ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 23; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: center; flight hours: 1,280 total, 700 in this make and model, 1,197 as pilot in command, 310 in the last 90 days, 100 in the last 30 days, 13 in the last 24 hours ## Weather - Conditions: Visual (VMC), Dusk - Wind: 60° at 5 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 73 °F, dew point 57 °F - Altimeter: 29.00 inHg - Observed at: PKD, 30 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 19950812023469A](https://openairdocs.org/incident/19950812023469A), Aug 12, 1995: Scwzer G164B, Wadena, MN, Destroyed. Stalled during pullup to avoid power line after a spray run. Cartwheeled landing. Separated engine and nosed over. (-23) acft NE bound - first pass to drop… 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. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.