# NTSB IAD98LA076: Cessna 172M, N12187, Somerset, KY, July 4, 1998 - Type: NTSB accident investigation - Classification: Accident · Serious injuries · Limited investigation · Final report - Date: July 4, 1998, 01:12 local (05:12 UTC) - Place: Somerset, KY - Coordinates: 37.080997, -84.600227 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=37.0810&lon=-84.6002&mi=10 - Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping) - Highest injury: Serious injuries - Injuries: 1 serious - Status: Completed, report September 7, 2000 - Report: Approved by Office Director - NTSB case key (mKey): 43180 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD98LA076 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/43180/pdf - Page: https://openairdocs.org/ntsb/IAD98LA076 ## Probable cause the pilot's failure to follow procedures to hand-prop the airplane. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - on ground/water, standing - starting engine(s) - light condition - dark night - procedures/directives - not followed, pilot in command (cause) - On ground/water collision with object, other - object - aircraft parked/standing ## Analysis The pilot was performing a preflight inspection, at 0100 local time, in preparation for a pleasure flight with two friends. The pilot reported that he discovered the battery was dead, and not wanting to disappoint his friends, decided to hand-prop the airplane for engine start. After 2-3 minutes, the engine caught and the airplane lurched forward. The pilot stated that the left wing and the empennage tie down ropes fell off, and the airplane began to pivot around the right wing tie down rope. He reported that he gave chase to the airplane, but was hit by either the left wing strut or horizontal stab as the empennage swung around. The runaway airplane then collided with an airplane parked in an adjacent parking spot. The pilot stated that he never hand-propped an airplane before, nor had he received instruction on how to hand-prop an airplane. ## Factual narrative On July 4, 1998, at 0112 eastern daylight time, a Cessna 172M, N12187, was substantially damaged as it collided with a parked airplane during start up at the Somerset-Pulaski County Airport (SME), Somerset, Kentucky. The certificated private pilot was seriously injured. Night visual meteorological conditions prevailed and no flight plan was filed for the local personal flight that was to be conducted under 14 CFR Part 91. The private pilot stated that he regularly flew at night, and that his normal procedure was to untie the airplane during his preflight walk around. He reported that he immediately checked for the key in the airplane, flipped the master switch on, and found the battery dead. He stated that he did not want to disappoint his passengers, so he decided to hand prop the airplane. The pilot reported that he pumped the engine primer 4 times, set the master switch-on, ignition-both, mixture-full rich, throttle-open 1/8 inch, and ensured that the fuel selector was on both. The pilot stated that he did not check the security of the tie down ropes, but the three ropes were attached to the unchocked airplane. The pilot indicated that none of his passengers were pilots, so he did not want them in the airplane. The pilot reported that he turned the prop, got it to cough, but never got the engine started. After several attempts, the pilot indicated that another airplane taxied in and parked in the spot next to his right wing. The pilot reported that he again started to hand prop the airplane. After 2-3 minutes, the engine caught and the airplane lurched forward. He stated that the left wing and the empennage tie down ropes fell off, and the airplane began to pivot around the right wing tie down rope. The pilot reported that he gave chase to the airplane, but was hit by either the left wing strut or horizontal stab as the empennage swung around. The runaway airplane's propeller impacted the parked airplane's left wing. A Federal Aviation Administration Inspector examined the damaged Cessna 172. He reported that the parked airplane's propeller punctured the Cessna's left wing, cracking the trailing edge spar, and that an undetermined amount of damage was done to the left horizontal stab and to the engine cowling area. The private pilot reported that he broke his wrist and received 20 stitches above his eye. When interviewed after the accident by a National Transportation Safety Board Investigator, the pilot stated that he never hand propped an airplane before, nor had he received instruction on how to hand-prop an airplane. Neither the pilot nor the operator responded to any of the four requests for a completed NTSB Form 6120.1/2 Pilot/Operator Aircraft Accident Report. The pilot was contacted by mail with no response. Copies were transmitted by facsimile to the operator of the airplane, also with no response. ## Aircraft - Registration: [N12187](https://openairdocs.org/aircraft/N12187), registered now, S/N 17261870, built 1973 (OpenAirDocs) - Reported make and model: Cessna 172M - Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (registry code 2072418) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 17261870 - Airframe hours: 5688 - Engines: Lycoming O-320-E2D 160 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Cumberland Valley Aviation - Airworthiness certificate: Standard, Normal - Destination: SME - Airport: SME, Somerset-Pulaski County ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 44; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; flight hours: 141 total, 102 in this make and model, 7 in the last 90 days ## Weather - Conditions: Visual (VMC), Night/dark - Wind: calm - Visibility: 4 statute miles - Lowest ceiling: none - Temperature: 70 °F, dew point 64 °F - Altimeter: 30.00 inHg - Observed at: SME ## 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 19980704021159A](https://openairdocs.org/incident/19980704021159A), Jul 4, 1998: Cessna 172M, Sacramento, CA, Substantial damage. Started 172 by hand propping. Left and tail ropes slid off. Aircraft pivoted around right tie down. Hit parked PA28 (.4)the pilot was performing a preflight… 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.