# NTSB CHI86FA094: Cessna 152, N93604, Drayton Plaines, MI, March 1, 1986 - Type: NTSB accident investigation - Classification: Accident · Fatal · Field investigation · Final report - Date: March 1, 1986, 16:12 local (21:12 UTC) - Place: Drayton Plaines, MI - Location: 42.6669° N, 83.4009° W: Placed by OpenAirDocs from NTSB’s distance and direction from OAKLAND COUNTY INTL (PTK), within about a mile (OpenAirDocs) - Nearby events: https://openairdocs.org/map.md?lat=42.6669&lon=-83.4009&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: Fatal - Injuries: 1 fatal, 2 serious - Status: Completed - Report: Approved by Office Director - NTSB case key (mKey): 13243 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI86FA094 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13243/pdf - Page: https://openairdocs.org/ntsb/CHI86FA094 ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Midair collision, approach - vfr pattern - final approach - airport/facilities - congested (contributing factor) - control tower service - inadequate, atc personnel(lcl/gnd/clnc) (contributing factor) - excessive workload (task overload), atc personnel(lcl/gnd/clnc) (contributing factor) - visual lookout - inadequate, pilot in command (cause) - lack of total experience, pilot in command (contributing factor) - In flight collision with terrain/water, descent - uncontrolled - Midair collision, approach - vfr pattern - final approach - airport/facilities - congested (contributing factor) - control tower service - inadequate, atc personnel(lcl/gnd/clnc) (contributing factor) - excessive workload (task overload), atc personnel(lcl/gnd/clnc) (contributing factor) - visual lookout - inadequate, pilot of other aircraft (cause) - lack of total experience, pilot of other aircraft (contributing factor) - In flight collision with terrain/water, descent - uncontrolled ## Analysis (aircraft 2) AFTER A HOME BUILT DRAGON FLY GND LOOPED, OTHER ACFT IN THE VFR TRAFFIC PATTERN WERE SENT AROUND, INCLUDING A CESSNA 152(C-152), N93604, FLOWN BY A STUDENT PLT. SHORTLY AFTER THE DRAGON FLY WAS CLRD FM THE RWY, CESSNA 172 (C-172), N48003, ENTERED THE PATTERN, MAKING A TOTAL OF 6 ACFT IN THE PATTERN & 1 ACFT (PLT) WAITING TO DEPART. THE C-172 HAD ENTERED THEPATTERN AHEAD OF THE C-152. THE TWR CONTROLLER (CTLR) TOLD THE STUDENT (C-152) HE WAS #3 IN THE PATTERN 'FOLLOWING A CESSNA ON BASE.' THE STUDENT ACKNOWLEDGED. SHORTLY AFTER THAT, THE #1 ACFT IN THE PATTERN LANDED & THE PLT WAITING TO DEPART WAS CLEARED TO TAKEOFF. AS THE C-172 & C-152 CONTD IN THE PATTERN, THE CTLR ASKED THE STUDENT (C-152) IF HE WAS STILL FOLLOWING THE CESSNA AHEAD; THE STUDENT REPLIED 'THAT'S AFFIRMATIVE.' HOWEVER, ON FINAL APCH, THE 2 ACFT CONVERGED & COLLIDED, THEN FELL TO THE GND. THE CTLR, WHO WAS BUSY, DID NOT SEE THE ACDNT. THE PLT-IN-COMMAND OF THE C-172 WAS FATALLY INJURED; THE 2ND PLT (COPLT) IN THE C-172 & THE C-152 PLT WERE SERIOUSLY INJURED. ## Aircraft 1 - Registration: [N93604](https://openairdocs.org/deregistered/N93604-1994-10-24), registration cancelled 1994-10-24, S/N 15285526 (OpenAirDocs) - Reported make and model: CESSNA 152 - Registry model: [Cessna 152](https://openairdocs.org/model/cessna-152) (registry code 2071835) (OpenAirDocs) - Category: Airplane - Serial number: 15285526 - Airframe hours: 780 - Engines: LYCOMING O-235-L2C 110 horsepower reciprocating - Damage: Destroyed - Flight: Instructional, Part 91 - Registered owner: Tradelwinds Aviation Inc. - Airworthiness certificate: Standard, Normal - Last inspection: Annual, December 18, 1985, 60 hours before - Airport: PTK, Pontiac-Oakland, runway 27R, 3,251 × 75 ft, macadam ## Aircraft 2 - Registration: N48003 (not matched to a registry record) - Reported make and model: CESSNA 172M - Category: Airplane - Serial number: 17263886 - Airframe hours: 1691 - Engines: LYCOMING O-320-E2D 150 horsepower reciprocating - Damage: Destroyed - Flight: Personal, Part 91 - Registered owner: 107th Flying Club - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, January 6, 1986, 7 hours before - Airport: PTK, Pontiac-Oakland, runway 27R, 3,251 × 75 ft, macadam ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot, aircraft N93604; age 19; student; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 26 total, 26 in this make and model, 3 as pilot in command, 26 in the last 90 days, 10 in the last 30 days, 1 in the last 24 hours - Pilot, aircraft N48003; age 39; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; toxicology performed; flight hours: 261 total, 261 in this make and model, 230 as pilot in command, 3 in the last 90 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 290° at 11 knots - Visibility: 10 statute miles - Lowest ceiling: 4,000 ft overcast - Altimeter: 29.00 inHg - Observed at: PTK, 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 19860301004601A](https://openairdocs.org/incident/19860301004601A), Mar 1, 1986: Cessna 152, Pontiac, MI, Destroyed. Solo student descended onto 48003 on final. Sun and snow a factor in busy pattern. ATC distraction a factor. - [Accident 19860301004602A](https://openairdocs.org/incident/19860301004602A), Mar 1, 1986: Cessna 172M, Dayton Plaines, MI, Destroyed. 93604 Descended onto aircraft while both were on final. Aircraft fell to ground. ATC distraction a factor. 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.