# NTSB ANC94LA069: Piper PA-12, N7690H, Anchorage, AK, June 13, 1994 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: June 13, 1994, 15:45 local (23:45 UTC) - Place: Anchorage, AK - Coordinates: 61.219459, -149.849456 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=61.2195&lon=-149.8495&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report January 25, 1995 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - NTSB case key (mKey): 2513 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC94LA069 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/2513/pdf - Page: https://openairdocs.org/ntsb/ANC94LA069 ## Probable cause THE PILOT'S EXCESSIVE USE OF THE WHEEL BRAKES. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Nose over, landing - roll - brakes(normal) - excessive, pilot in command (cause) ## Analysis THE PILOT, WITH 18 HOURS IN THE MODEL/TYPE OF AIRPLANE, WAS PRACTICING TAKEOFF AND LANDINGS WITH A FLIGHT INSTRUCTOR WHO WAS ACTING AS AN OBSERVER/CHECK PILOT. AFTER A NORMAL LANDING AND INITIAL ROLLOUT, THE PILOT APPLIED THE WHEEL BRAKES AND THE AIRPLANE NOSED OVER. THE PILOT COMMENTED THAT BETTER BRAKE CONTROL WAS WARRANTED ON HIS PART. ## Factual narrative On June 13, 1994, at 1545 Alaska daylight time, a conventional wheel equipped Piper PA-12, N7690H, registered to and operated by the pilot-in-command, nosed over onto its back during the landing rollout on runway 33 at the Merrill Field airport, Anchorage, Alaska. The airplane was substantially damaged. The private certificated pilot and the airline transport certificated flight instructor who was acting as the check pilot, the sole occupants on board, were not injured. Visual meteorological conditions prevailed for the 14 CFR Part 91 flight and there was no flight plan on file. The NTSB investigator-in-charge interviewed the two pilots at the accident scene shortly after the mishap occurred. Both pilots reported that the purpose of the flight was to familiarize the private pilot, who had recently purchased the airplane with the takeoff and landing techniques for conventional wheeled airplanes. The pilot had accrued approximately 18 hours in the airplane, all with the same instructor acting as a check pilot. The private pilots total experience in conventional wheeled aircraft was accrued in N7690H. The private pilot reported that following a normal landing, he applied the brakes and the airplane nosed over. The check pilot reported that the initiating events to the nose over occurred so quickly that he did not have sufficient time to take corrective action. No problems were found with the brake system during the post accident investigation. ## Aircraft - Registration: [N7690H](https://openairdocs.org/aircraft/N7690H), registered now, S/N 12-580, built 1946 (OpenAirDocs) - Reported make and model: PIPER PA-12 - Registry model: [Piper PA-12](https://openairdocs.org/model/piper-pa-12) (registry code 7101202) (OpenAirDocs) - Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs) - Category: Airplane - Serial number: 12-580 - Airframe hours: 1391 - Engines: LYCOMING O-320-A2B 160 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Pease, Robert J. - Registered owner: Pease, Robert J. - Airworthiness certificate: Standard, Normal - Last inspection: Annual, April 26, 1994, 18 hours before - Departed: Z41, LAKE HOOD, AK - Airport: MRI, Merrill Field, runway 33, 2,640 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 41; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: front; flight hours: 123 total, 18 in this make and model, 35 as pilot in command, 18 in the last 90 days, 18 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 270° at 4 knots - Visibility: 100 statute miles - Lowest ceiling: none - Temperature: 61 °F - Altimeter: 29.00 inHg ## 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 19940613015169A](https://openairdocs.org/incident/19940613015169A), Jun 13, 1994: Piper PA12, Anchorage, AK, Substantial damage. Too much brakes on landing roll. Nosed over. Low time in type. Check pilot reported incident to fast to prevent. ## Other investigations on N7690H (3) 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 GAA18CA535](https://openairdocs.org/ntsb/GAA18CA535), Sep 5, 2018: Piper PA 12 (N7690H), Talkeetna, AK, substantial damage. Probable cause: The pilot’s failure to maintain pitch control on uneven terrain during the landing roll, which resulted in a nose-over. - [NTSB ANC11CA033](https://openairdocs.org/ntsb/ANC11CA033), May 17, 2011: Piper PA-12 (N7690H), Wasilla, AK, substantial damage. Probable cause: The pilot's inadequate preflight inspection, resulting in a departure with the fuel selector in the "off" position, a subsequent loss of engine power, and an off-airport emergency landing. - [NTSB ANC81DAG47](https://openairdocs.org/ntsb/ANC81DAG47), Jun 30, 1981: Piper PA-12 (N7690H), Anchorage, AK, 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.