# NTSB CHI89FA154: Ryan PT-22, N54403, Oshkosh, WI, July 31, 1989 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Field investigation · Final report - Date: July 31, 1989, 16:25 local (21:25 UTC) - Place: Oshkosh, WI - Coordinates: 43.539539, -89.460235 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=43.5395&lon=-89.4602&mi=10 - Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping) - Highest injury: Minor injuries - Injuries: 1 minor, 1 uninjured - Status: Completed, report December 10, 1990 - Report: Approved by Office Director - NTSB case key (mKey): 14268 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI89FA154 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/14268/pdf - Page: https://openairdocs.org/ntsb/CHI89FA154 ## Probable cause (aircraft 2) THE EXPERIMENTAL AIRCRAFT ASSOCIATION'S (EAA'S) INADEQUATE PROCEDURE FOR PROVIDING CONTROL AND SEPARATION OF AIRCRAFT, ITS INADEQUATE SURVEILLANCE OF THE OPERATION, AND INADEQUATE COORDINATION BY GROUND PERSONNEL. RELATED FACTORS WERE: THE GROUND PERSONNEL'S LACK OF EXPERIENCE IN THE TYPE OF OPERATION, AND THE PRESENCE OF OTHER AIRCRAFT. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - In flight collision with object, takeoff - initial climb - procedures/directives - inadequate (cause) - inadequate surveillance,inadequate procedure, other institution (cause) - object - aircraft moving on ground (contributing factor) - crew/group coordination - inadequate, ground personnel (cause) - lack of total experience in type operation, ground personnel (contributing factor) - On ground/water collision with object, taxi - from landing - procedures/directives - inadequate (cause) - inadequate surveillance,inadequate procedure, other institution (cause) - object - other (contributing factor) - crew/group coordination - inadequate, ground personnel (cause) - lack of total experience in type operation, ground personnel (contributing factor) ## Analysis (aircraft 2) DRG AN ANNUAL EXPERIMENTAL ACFT ASSOC (EAA) FLY-IN, A PARADE-OF-FLT DEMONSTRATION (DEMO) WAS STARTED, INVOLVING ANTIQUE & CLASSIC ACFT. AIR TRAFFIC CTL (ATC) RESPONSIBILITY FOR THE OPN WAS ASSUMED BY EAA, IAW A CERT OF WAIVER TO 14 CFR 91. THE DEMO BGN BY LINING UP ACFT NR RWY 36 TO TKOF IN SEQUENCE. WHEN SIGNALED, EACH PLT WOULD TAKE OFF, FLY A PATTERN, THEN LND ON A GRASS STRIP BESIDE RWY 36 & BE DRCTD TO THE PARKING AREA. AFTER A PATTERN & LNDG, THE PLT OF PIPER E-2, N2414, APCHD RWY 36 (1800' FM THE RWY THRESHOLD) AS HE WAS TAXIING TO PARK. AT THE APRX SAME TIME, A RYAN PT-22, N54403,WAS BEING PREPARED FOR TAKEOFF. AN OFFICIAL (FLAGMAN) MOTIONED FOR THE E-2 TO CROSS THE RWY, BUT IT WASN'T EQUIPPED WITHBRAKES, SO THE PLT TAXIED SLOWLY. THE FLAGMAN MOTIONED FOR THE E-2 PLT TO EXPEDITE, BUT THE PLT CONTD TO TAXI SLOWLY TO AVOID ACFT AHEAD. MEANWHILE, THE PT-22 PLT BGN TAKING OFF & DID NOT SEE THE E-2 AHEAD. SHORTLY AFTER LIFT-OFF, THE PT-22HIT THE E-2, DAMAGING BOTH ACFT. THE E-2 PLT SAW THE PT-22, MOMENTS BFR IMPACT. ## Aircraft 1 - Registration: [N54403](https://openairdocs.org/deregistered/N54403-2003-04-14), registration cancelled 2003-04-14, S/N 1387, built 1941 (OpenAirDocs) - Reported make and model: RYAN PT-22 - Registry model: [Ryan Aeronautical ST3KR](https://openairdocs.org/model/ryan-aeronautical-st3kr) (registry code 7830502) (OpenAirDocs) - Registry engine: [Kinner R5 series](https://openairdocs.org/engine/kinner-r5-series) (registry code 37504, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 1387 - Airframe hours: 3936 - Engines: KINNER R-55 160 horsepower reciprocating - Damage: Substantial damage - Flight: Part 91 - Registered owner: Rose, Bill - Airworthiness certificate: Standard, Normal - Last inspection: Annual, June 23, 1989, 16 hours before - Departed: OSH - Destination: OSH - Airport: OSH, Wittman Field, runway 36L, 8,001 × 150 ft, concrete ## Aircraft 2 - Registration: [N2414](https://openairdocs.org/aircraft/N2414), registered now, S/N 64 (OpenAirDocs) - Reported make and model: PIPER E-2 - Registry model: [Piper E-2](https://openairdocs.org/model/piper-e-2) (registry code 7100302) (OpenAirDocs) - Registry engine: [Continental A40 series](https://openairdocs.org/engine/continental-a40-series) (registry code 17001, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 64 - Airframe hours: 729 - Engines: Teledyne Cont A-40-4 40 horsepower reciprocating - Damage: Destroyed - Flight: Part 91 - Registered owner: Sleznikow, Larry - Airworthiness certificate: Standard, Normal - Last inspection: Annual, January 22, 1989, 13 hours before - Departed: OSH - Destination: OSH - Airport: OSH, Wittman Field, runway 36L, 8,001 × 150 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot, aircraft N54403; age 41; airline transport, private; airplane ratings: multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: rear; flight hours: 12,000 total, 35 in this make and model, 6,000 as pilot in command, 220 in the last 90 days, 85 in the last 30 days, 3 in the last 24 hours - Pilot, aircraft N2414; age 57; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: rear; flight hours: 1,356 total, 129 in this make and model, 1,276 as pilot in command, 18 in the last 90 days, 12 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 60° at 5 knots - Visibility: 5 statute miles - Lowest ceiling: 15,000 ft broken - Temperature: 79 °F, dew point 61 °F - Altimeter: 30.00 inHg - Observed at: OSH, 1 nm away ## FAA reports on this event (2) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 19890731025911A](https://openairdocs.org/incident/19890731025911A), Jul 31, 1989: Ryan PT22, Oshkosh, WI, Substantial damage. After liftoff struck a taylor E2 N2414 that was crossing the runway. Both had clearance. Ground crew error in timing - [Accident 19890731025912A](https://openairdocs.org/incident/19890731025912A), Jul 31, 1989: Piper E2, Oshkosh, WI, Destroyed. Was struck by departing N54403 while being cleared to cross runway by ground crew. Sequencing was too close. ## Other investigations on N54403 (2) 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 MIA00LA242](https://openairdocs.org/ntsb/MIA00LA242), Aug 19, 2000: Ryan ST3KR (N54403), St. Lucie, FL, substantial damage. Probable cause: The pilot's improper judgment to conduct a precautionary landing when he first experienced a partial loss of engine power, and his subsequent failure to maintain a visual lookout during a forced… - [NTSB CHI70D0068](https://openairdocs.org/ntsb/CHI70D0068), Jul 6, 1969: Ryan ST-3KR (N54403), Bowling Green, KY, 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.