# NTSB CHI99FA223: Piper PA-24-250, N7314P, Fertile, MN, July 9, 1999 - Type: NTSB accident investigation - Classification: Accident · Fatal · Field investigation · Final report - Date: July 9, 1999, 17:22 local (22:22 UTC) - Place: Fertile, MN - Coordinates: 47.530788, -96.289718 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=47.5308&lon=-96.2897&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Highest injury: Fatal - Injuries: 2 fatal - Status: Completed, report November 30, 2000 - Report: Approved by Office Director - NTSB case key (mKey): 46798 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI99FA223 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/46798/pdf - Page: https://openairdocs.org/ntsb/CHI99FA223 ## Probable cause the inadvertent stall. Factors relating to this accident were the instructor pilot maneuvering the airplane at very low altitude and the trees. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - In flight collision with object, maneuvering - stall - inadvertent, pilot in command(cfi) (cause) - altitude - low, pilot in command(cfi) (contributing factor) - object - tree(s) (contributing factor) - exhaust system,manifold/pipe - cracked - wing - separation - In flight collision with terrain/water, descent - uncontrolled ## Analysis The flight instructor was giving commercial instruction to the dual student, a private pilot, in the airplane. The airplane was seen flying at low altitude in the vicinity of the Fertile Airport. One witness saw the airplane come up out of the airport and turn south. He said he saw the airplane initiate a steep banked turn to the left, just over the trees. The witness said he looked away momentarily. When he turned back to the area where he saw the airplane, it was gone. Another witness was one mile east of the accident location when he saw the airplane. He said that he saw the airplane make a left, steep- banked turn, and then go down. The witness said that the airplane was low to the ground. The witness said the airplane was as high as a spray plane in a turn, after it makes a pass over a field. Examination of the wreckage revealed 3 inch long crack in the number 5 engine cylinder exhaust pipe, circumscribing the pipe approximately 1/4 inch to 1 inch beneath the flange where the pipe joined the cylinder. No other anomalies with the airplane were revealed. State Medical Examiner's Laboratory test results from the dual student pilot showed blood carbon monoxide to be 1.3 percent. The results of FAA toxicology testing of specimens from the dual student pilot were reported negative for all tests conducted. FAA toxicology results do not report carbon monoxide as positive until it reaches 10 percent. No carboxyhemoglobin tests were conducted on the instructor pilot due to blood contamination. ## Factual narrative HISTORY OF FLIGHT On July 9, 1999, at 1722 central daylight time (cdt), a Piper PA- 24-250, N7314P, operated by an airline transport pilot, was destroyed while maneuvering 1 mile west-southwest of the Fertile Airport, Fertile, Minnesota. The airplane departed controlled flight, struck some trees and subsequently impacted the terrain. Visual meteorological conditions prevailed at the time of the accident. The instructional flight was being conducted under 14 CFR Part 91. No flight plan was on file. The flight instructor and dual student were fatally injured. The local flight originated at Fertile, Minnesota, at 1645 cdt. The manager of the Fertile Airport said that he saw the airplane takeoff on runway 32 (3,002 feet by 60 feet, dry asphalt). He watched the airplane perform three to four standard traffic patterns and landings, the last landing being to a full stop. The manager said that he watched the airplane turn around on the runway and taxi down to the approach end of runway 31, to take off again. The manager said that he left the airport just as the airplane was taking off again. It was 1645 cdt. Prior to the accident, several witnesses saw the airplane operating in the vicinity of the Fertile Airport. Two witnesses were traveling eastbound in a pick-up truck, 3 1/2 miles west of Fertile, when they saw the airplane. The driver of the truck estimated that he was 1/2 mile from the airplane when he saw it. He said the airplane was traveling from south to north. He described the airplane as being low to the ground and slow. The driver said that he only saw the airplane for two seconds before it went below the tree line. He estimated that it was approximately 1730 cdt when he saw the airplane. The passenger in the truck said the airplane was about 1/2 mile in front of them when it came across the highway, heading north. The passenger said that the airplane was not very high above the ground. "It was just above the tree line; tree top high or a little bit above." Thinking that the airplane was a crop-dusting airplane, the passenger recalled commenting to the driver that he wondered what they (the airplane) were spraying out there. The passenger said the airplane was descending like a crop-dusting airplane, "like he was spraying, going over the wires and then dropping down". Then the airplane was gone. "We passed the point where we thought we saw the airplane go over, about 30 seconds later. We didn't see him again." The passenger said that the area that he thought the airplane went over was not a field or an area which looked like it would be sprayed. Another witness working in a field just west of the accident site, said he saw the airplane come up out of the airport and turn to the south. He said he saw the airplane initiate a steep banked turn to the left just over the trees. The witness said he looked away momentarily to continue his work. When his attention turned back to the area where he saw the airplane, the witness said the airplane was gone. A fourth witness said that he was riding his motorcycle one mile east of the accident location, when he saw the airplane. He said that he saw the airplane make a left, steep-banked turn, and then go down. The witness said that the airplane looked just like a spray plane when it sprays a field. The witness said that the airplane was low to the ground. He said that the airplane was as high as a spray plane in a turn, after it makes a pass over a field. The manager of the Fertile Airport said that when he returned to his home, he heard an emergency locator transmitter (ELT) signal going off over his scanner. He said that he immediately went to the airport and checked the airplanes on the ramp. It was 1730 cdt. A few moments later a Fertile police officer, responding to the ELT signal which they began receiving at 1722 cdt, arrived at the airport. The airport manager said that he and the officer began searching the area nearby the airport. The airport manager sighted the airplane from an east-west running dirt road, resting in a wooded area, a short time later. PERSONNEL INFORMATION The flight instructor held an airline transport pilot certificate with single and multi-engine land and sea, instrument airplane ratings, and commercial privileges for rotorcraft-gyroplane and glider-aerial tow airplane. The flight instructor also held a certificate as a certified flight instructor (CFI) with privileges to instruct in single and multi-engine land, instrument airplanes, rotorcraft-gyroplanes, and gliders. According to his most recent logbook, the instructor pilot had 4,444.2 total flying hours, with 2,567.4 hours in single-engine airplanes, and 12 hours in the PA-24. The instructor pilot had also logged 1,075.9 hours as a flight instructor. The instructor pilot's biennial flight review coincided with the reinstatement of his flight instructor's certificate. An undated entry in his final logbook stated the instructor had been reinstated as a CFI. A renewed flight instructor certificate was issued by the FAA on May 27, 1999. The dual student held a private pilot certificate with a single- engine land rating, and was working toward completing a non- instrument, commercial pilot certificate. According to his logbook, the dual student had 313.7 total flying hours, all in single-engine land airplanes, and 33.3 hours in the PA-24. The dual student successfully completed a biennial flight review on March 31, 1999, in a PA-24-260 AIRCRAFT INFORMATION The airplane was owned and operated by Vic's Aircraft Sales, Fargo, North Dakota, and used in a rental capacity for flight instruction, business, and personal flying. The airplane had undergone an annual inspection on June 6, 1999. The total airframe time recorded at the annual inspection was 5,433 hours. The tachometer reading at the annual inspection was 706.0 hours. The tachometer reading recorded at the accident site was 727.7 hours. WRECKAGE AND IMPACT INFORMATION The NTSB on-scene investigation began on July 10, 1999, at 1230 cdt. The accident site was located in a heavily wooded area approximately 150 feet south of an east-west running gravel township road, and 75 feet east of a wheat field, with a standing crop. The ground in the immediate vicinity of the airplane's main wreckage was soft and muddy. The airplane main wreckage, consisting of the fuselage, engine, propeller, right wing, inboard 8 feet of the left wing, and empennage was located at 47 degrees, 33.394 minutes north latitude, and 096 degrees, 18.266 minutes west longitude; 0.9 miles from the Fertile Airport on a 300 degree magnetic heading. Preceding the airplane's main wreckage was a 100 foot tall, 18 inch diameter oak tree near the west edge of the wooded area. Several branches in the top portion of the tree were severed and broken. Several of the severed and broken branches were found at the base of the tree and fanning out from the tree along a 067 degree magnetic heading for approximately 25 feet. A 30 inch long section of the airplane's left wing, containing the remains of the left auxiliary fuel tank, was located 11 feet from the base of the oak tree on a 140 degree magnetic heading. The wing section displayed a 6 inch wide, 12 inch deep "C" shaped dent in the leading edge and bottom skin, 2 inches in from the outboard fracture. The auxiliary fuel tank bladder was shredded. Vegetation beneath the wing section was discolored and withering. The remaining outboard wing section, from the wing tip inboard 63 inches, was located in tall grass and shrubs, 35 feet from the base of the oak tree on a 220 degree magnetic heading. The wing section showed little damage. The taxi/landing light cover, just inboard of the wing tip, was broken out. The top forward section of the wing tip was broken inward. The airplane main wreckage was located 95 feet from the base of the o ## Aircraft - Registration: [N7314P](https://openairdocs.org/deregistered/N7314P-2000-05-12), registration cancelled 2000-05-12, S/N 24-2490 (OpenAirDocs) - Reported make and model: Piper PA-24-250 - Registry model: [Piper PA-24-250](https://openairdocs.org/model/piper-pa-24-250) (registry code 7102404) (OpenAirDocs) - Category: Airplane - Serial number: 24-2490 - Airframe hours: 5455 - Engines: Lycoming O-540-A1C1 250 lbs thrust reciprocating - Damage: Destroyed - Flight: Instructional, Part 91 - Registered owner: Victor Gelking - Airworthiness certificate: Standard, Normal - Last inspection: Annual, June 12, 1999, 22 hours before - Departed: 14D - Airport: D14, Fertile Airport, runway 32, 3,002 × 60 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 25; commercial, flight instructor, airline transport; airplane ratings: multi-engine land, single-engine sea, multi-engine sea, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: right; toxicology performed; flight hours: 4,444 total, 12 in this make and model, 4,195 as pilot in command, 29 in the last 90 days ## Weather - Conditions: Visual (VMC), Day - Wind: 360° at 12 knots, gusting 16 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 63 °F, dew point 52 °F - Altimeter: 30.00 inHg - Observed at: FSE, 22 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 19990709008629A](https://openairdocs.org/incident/19990709008629A), Jul 9, 1999: Piper PA24250, Fertile, MN, Destroyed, 2 fatal. Acft crashed into trees approximately 1 mile west of the arpt after performing a touch and go landing, the 2 POB suffered fatal injuries, the acft was… ## Other investigations on N7314P (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 MKC66F0243](https://openairdocs.org/ntsb/MKC66F0243), Aug 27, 1965: Piper PA-24 (N7314P), Ashley, ND, 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.