# NTSB ANC07CA076: Maule M-5-235, N56366, Talkeetna, AK, August 8, 2007 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: August 8, 2007, 15:15 local (23:15 UTC) - Place: Talkeetna, AK - Coordinates: 62.323055, -150.083328 - Nearby events: https://openairdocs.org/map.md?lat=62.3231&lon=-150.0833&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report December 20, 2007 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - Parties: Anchorage FSDO - NTSB case key (mKey): 66410 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC07CA076 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/66410/pdf - Page: https://openairdocs.org/ntsb/ANC07CA076 ## Probable cause The flight instructor's inadequate supervision of the student while landing, which resulted in an undershoot and an in-flight collision with an object. Factors contributing to the accident are the dual student's misjudged altitude/distance and delayed response in relinquishing the flight controls. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Undershoot, approach - vfr pattern - final approach - distance/altitude - misjudged, dual student (contributing factor) - supervision - inadequate, pilot in command(cfi) (cause) - relinquishing of control - delayed, dual student (contributing factor) - In flight collision with object, approach - vfr pattern - final approach - object - vasi light/system ## Analysis The certificated flight instructor (CFI) was providing flight instruction to a certificated commercial pilot for a tailwheel endorsement under Title 14, CFR Part 91. The CFI reported that while on final approach to land, he inadvertently allowed the commercial pilot to descend prior to reaching their intended touchdown point. He said that his verbal command to initiate a go-around was not followed by the commercial pilot, and that he was unable to move the commercial pilot's hand from the throttle in order to add full engine power. The airplane drifted to the right and struck a VASI light box. The airplane sustained substantial damage to the left wing, left wing lift strut, and fuselage. The CFI noted that there were no preaccident mechanical anomalies with the airplane. ## Factual narrative The certificated flight instructor (CFI) was providing flight instruction to a certificated commercial pilot for a tailwheel endorsement under Title 14, CFR Part 91. The CFI reported that while on final approach to land, he inadvertently allowed the commercial pilot to descend prior to reaching their intended touchdown point. He said that his verbal command to initiate a go-around was not followed by the commercial pilot, and that he was unable to move the commercial pilot's hand from the throttle in order to add full engine power. The airplane drifted to the right and struck a VASI light box. The airplane sustained substantial damage to the left wing, left wing lift strut, and fuselage. The CFI noted that there were no preaccident mechanical anomalies with the airplane. ## Aircraft - Registration: [N56366](https://openairdocs.org/aircraft/N56366), registered now, S/N 7308C, built 1980 (OpenAirDocs) - Reported make and model: Maule M-5-235 - Registry model: [Maule M-5-235C](https://openairdocs.org/model/maule-m-5-235c) (registry code 5460135) (OpenAirDocs) - Registry engine: [Lycoming O-540-J1A5D](https://openairdocs.org/engine/lycoming-o-540-j1a5d) (registry code 42354, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 7308C - Airframe hours: 2051.5 - Engines: Lycoming O-540 235 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Andrew J. Haag, doing business as Above Alaska Aviation, LLC - Registered owner: Kerby S. Ryan - Airworthiness certificate: Standard, Normal - Last inspection: Annual, July 1, 2007 - Departed: PATK, Talkeetna, AK - Destination: PATK, Talkeetna, AK ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 29; injuries: none; commercial, flight instructor; airplane ratings: single-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, with waivers/limitations; seat: right; flight hours: 1,716 total, 41 in this make and model, 1,665 as pilot in command, 190 in the last 90 days, 86 in the last 30 days, 6 in the last 24 hours - Student pilot; injuries: none ## Weather - Conditions: Visual (VMC), Day - Wind: 200° at 7 knots - Visibility: 10 statute miles - Lowest ceiling: 7,000 ft broken - Temperature: 75 °F, dew point 43 °F - Altimeter: 29.95 inHg - Observed at: TKA ## 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 20070808019609A](https://openairdocs.org/incident/20070808019609A), Aug 8, 2007: Maule M5235C, Talkeetna, AK, Substantial damage. (-23) CFI [privacy data omitted] was giving dual instruction to commercially rated pilot [privacy data omitted]. They were practicing landings at the… ## Other investigations on N56366 (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 FTW86LA056](https://openairdocs.org/ntsb/FTW86LA056), Apr 1, 1986: Maule M-5-235C (N56366), West, TX, substantial damage 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.