# NTSB NYC92FA093: Cessna 172N, N738YV, Brookeville, MD, June 1, 1992 - Type: NTSB accident investigation - Classification: Accident · Fatal · Field investigation · Final report - Date: June 1, 1992, 11:47 local (15:47 UTC) - Place: Brookeville, MD - Coordinates: 39.17094, -77.049407 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=39.1709&lon=-77.0494&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Highest injury: Fatal - Injuries: 3 fatal, 1 serious, 3 uninjured - Status: Completed, report May 28, 1993 - Report: Approved by Office Director - NTSB case key (mKey): 37060 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC92FA093 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/37060/pdf - Page: https://openairdocs.org/ntsb/NYC92FA093 ## Probable cause (aircraft 2) IMPROPER INFLIGHT PLANNING/DECISION BY THE FLIGHT INSTRUCTOR (PIC/CFI) IN THE CESSNA 172, HIS MISJUDGEMENT OF DISTANCE BETWEEN THE TWO AIRPLANES, AND INADEQUATE VISUAL LOOKOUT BY BOTH PILOTS IN THE CESSNA 172. ## Probable cause (aircraft 1) IMPROPER INFLIGHT PLANNING/DECISION BY THE FLIGHT INSTRUCTOR (PIC/CFI) IN THE CESSNA 172, HIS MISJUDGEMENT OF DISTANCE BETWEEN THE TWO AIRPLANES, AND INADEQUATE VISUAL LOOKOUT BY BOTH PILOTS IN THE CESSNA 172. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Midair collision, maneuvering - in-flight planning/decision - improper, pilot in command(cfi) (cause) - distance - misjudged, pilot in command(cfi) (cause) - visual lookout - inadequate, pilot in command(cfi) (cause) - visual lookout - inadequate, pilot in command(cfi) (cause) - Loss of control - in flight, maneuvering - In flight collision with terrain/water, descent - uncontrolled - Midair collision, cruise - normal - in-flight planning/decision - improper, pilot of other aircraft (cause) - distance - misjudged, pilot of other aircraft (cause) - visual lookout - inadequate, pilot of other aircraft (cause) - Forced landing, descent - emergency - In flight collision with terrain/water, landing - wheels up landing ## Analysis (aircraft 2) CESSNA 172, N738YV, & CESSNA R182, N4445R, WERE BEING OPERD BY CONGRESSIONAL AIR AT MONTGOMERY COUNTY AIRPARK. THE 172 WAS RTRNG TO THE ARPT AT AN ALT OF 2500 FT DRG A DUAL TRNG FLT. THE R182 HAD DEPD FROM BALTIMORE & WAS ALSO INBOUND TO THE ARPT, BUT AT 1500 FT. THE CFI IN THE 172 ADZD THE R182 PLTS THAT HE WOULD CIRCLE A LANDFILL NEAR THE ARPT, THEN FOLLOW THE R182 TO THE ARPT. THE R182 PLT RPRTD HE SAW THE 172 PASSING IN FRONT OF HIS ACFT IN THE OPPOSITE DRCTN (AT A DSTC OF ABT 1/2 TO 3/4 MI); 'AFTER A MINUTE' HE LOOKED OUT THE RGT WINDOW & SAW THE 172 CONVERGING IN A DSCNDG RGT TURN. HE TRIED TO AVOID A COLLISION, BUT WAS UNABLE. THE 172 WENT INTO AN UNCTLD DSCNT & CRASHED; THE R182 PLT MADE A FORCED LNDG IN A WHEAT FLD. AN EXAM OF THE 172 REVEALED THAT ABT 3-1/2 FT OF THE LEFT OUTBOARD WING SECTION WAS MISSING. THIS SECTION WAS FOUND EMBEDDED IN THE RGT SIDE OF THE R182'S FUSELAGE, JUST BEHIND THE ENG. ## Analysis (aircraft 1) CESSNA 172, N738TV, & CESSNA R182, N4445R, WERE BEING OPERD BY CONGRESSIONAL AIR AT MONTGOMERY COUNTY AIRPARK. THE 172 WAS RTRNG TO THE ARPT AT AN ALT OF 2500 FT DRG A DUAL TRNG FLT. THE R182 HAD DEPD FROM BALTIMORE & WAS ALSO INBOUND TO THE ARPT, BUT AT 1500 FT. THE CFI IN THE 172 ADZD THE R182 PLTS THAT HE WOULD CIRCLE A LANDFILL NEAR THE ARPT, THEN FOLLOW THE R182 TO THE ARPT. THE R182 PLT RPRTD HE SAW THE 172 PASSING IN FRONT OF HIS ACFT IN THE OPPOSITE DRCTN (AT A DSTC OF ABT 1/2 TO 3/4 MI); 'AFTER A MINUTE' HE LOOKED OUT THE RGT WINDOW & SAW THE 172 CONVERGING IN A DSCNDG RGT TURN. HE TRIED TO AVOID A COLLISION, BUT WAS UNABLE. THE 172 WENT INTO AN UNCTLD DSCNT & CRASHED; THE R182 PLT MADE A FORCED LNDG IN A WHEAT FLD. AN EXAM OF THE 172 REVEALED THAT ABT 3-1/2 FT OF THE LEFT OUTBOARD WING SECTION WAS MISSING. THIS SECTION WAS FOUND EMBEDDED IN THE RGT SIDE OF THE R182'S FUSELAGE, JUST BEHIND THE ENG. ## Aircraft 1 - Registration: [N738YV](https://openairdocs.org/deregistered/N738YV-1992-08-31), registration cancelled 1992-08-31, S/N 17270350 (OpenAirDocs) - Reported make and model: CESSNA 172N - Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (registry code 2072434) (OpenAirDocs) - Category: Airplane - Serial number: 70350 - Engines: LYCOMING O-320-H2AD 160 horsepower reciprocating - Damage: Destroyed - Flight: Instructional, Part 91 - Operator: Congressional Air - Registered owner: Glassman Aviation Inc. - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, January 2, 2000 - Departed: GAI, GAITHERSBURG, MD ## Aircraft 2 - Registration: [N4445R](https://openairdocs.org/deregistered/N4445R-2012-11-30), registration cancelled 2012-11-30, S/N R18200600, built 1978 (OpenAirDocs) - Reported make and model: CESSNA R182 - Registry model: [Cessna R182](https://openairdocs.org/model/cessna-r182) (registry code 2072734) (OpenAirDocs) - Registry engine: [Lycoming 0-540 series](https://openairdocs.org/engine/lycoming-0-540-series) (registry code 41532, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 00600 - Airframe hours: 3011 - Engines: LYCOMING O-540-J3C5D 235 horsepower reciprocating - Damage: Substantial damage - Flight: Part 135 - Operator: Congressional Air - Registered owner: N4445r Inc. - Airworthiness certificate: Standard, Utility; Standard, Normal - Last inspection: 100 hour, March 6, 1992, 69 hours before - Departed: BWI, BALTIMORE, MD - Destination: GAI, GAITHERSBURG, MD ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot, aircraft N738YV; age 30; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: right; toxicology performed; flight hours: 1,430 total - Pilot, aircraft N4445R; age 34; flight instructor, airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 1,430 total ## Weather - Conditions: Visual (VMC), Day - Wind: 310° at 11 knots - Visibility: 15 statute miles - Lowest ceiling: 4,800 ft overcast - Temperature: 68 °F, dew point 54 °F - Altimeter: 29.00 inHg - Observed at: BWI, 25 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 19920601017341A](https://openairdocs.org/incident/19920601017341A), Jun 1, 1992: Cessna 172N, Brookeville, MD, Destroyed, 3 fatal. While trying to position behind company N4445R struck the aircraft on right side. Lost wing section and spun in. - [Accident 19920601017342A](https://openairdocs.org/incident/19920601017342A), Jun 1, 1992: Cessna R182, Brookeville, MD, Substantial damage. During cruise was struck by company aircraft N738YV that was turning to get behind his aircraft. Landed safely. 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.