# NTSB ATL94LA134: Cessna 152, N67318, Chamblee, GA, July 9, 1994 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: July 9, 1994, 16:10 local (20:10 UTC) - Place: Chamblee, GA - Coordinates: 33.900329, -84.300628 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=33.9003&lon=-84.3006&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report April 27, 1995 - Report: Approved by Office Director - NTSB case key (mKey): 3413 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL94LA134 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/3413/pdf - Page: https://openairdocs.org/ntsb/ATL94LA134 ## Probable cause INADEQUATE MAINTENANCE BY THE OPERATOR, WORN PISTON RINGS, AND FAILURE TO OVERHAUL THE ENGINE WHEN DUE. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power, approach - vfr pattern - base leg/base to final - maintenance,overhaul,major - overdue, company/operator management (cause) - engine assembly,cylinder - low compression (cause) - engine assembly,ring - worn (cause) - maintenance - inadequate, company/operator management (cause) - Forced landing, emergency descent/landing - On ground/water collision with object, emergency descent/landing - object - fence - object - vehicle ## Analysis THE FLIGHT WAS IN THE AIRPORT TRAFFIC PATTERN PRACTICING TOUCH-AND-GO LANDINGS. WHILE TURNING BASE TO FINAL, THE ENGINE LOST POWER, AND THE INSTRUCTOR EXECUTED AN EMERGENCY LANDING TO A PARKING LOT. DURING THE LANDING ATTEMPT, THE AIRCRAFT STRUCK A FENCE AND A PARKED VEHICLE. INSPECTION OF THE ENGINE REVEALED THAT COMPRESSION IN THREE OF THE FOUR CYLINDERS WAS BELOW ACCEPTABLE LIMITS. THE RECORDS SHOWED THAT THE ENGINE HAD BEEN FLOWN 2,836 HRS SINCE OVERHAUL. THE TIME LIMITATION BEFORE OVERHAUL FOR THE ENGINE IS 2,000 HRS. ## Factual narrative On July 9, 1994, at 1610 eastern daylight time, a Cessna 152, N67318, was substantially damaged following a collision with a vehicle during an emergency landing near Chamblee, Georgia. Neither the instructor pilot nor his student were injured in the accident. The aircraft was being operated under the provisions of 14 CFR Part 91 by Aviation Training Consultants of Lawrenceville, Georgia. Visual meteorological conditions existed at the time, and no flight plan had been filed for the local instructional flight. The flight departed Lawrenceville, Georgia at about 1540. The pilot stated that while in the traffic pattern on base leg, the engine lost power. An emergency landing was executed to a parking lot. During the landing, the aircraft struck a fence and a parked vehicle. Examination of the engine revealed that there was continuity of the engine drive train. The cylinder compressions, prior to staking the valves, (in pounds per square inch) were #1 38/80, #2 70/80, #3 18/80, and #4 10/80. The cylinder compressions after staking the valves, (in pounds per square inch) were #1 58/80, #2 70/80, #3 38/80, and #4 30/80. The minimum acceptable compression for the cylinders is 60/80 pounds per square inch. There was heavy carbon buildup in the cylinders, and on the pistons. The investigation determined that the engine had 2,836 hours since overhaul. Time between overhauls for the engine is 2,000 hours. ## Aircraft - Registration: [N67318](https://openairdocs.org/deregistered/N67318-1997-03-24), registration cancelled 1997-03-24, S/N 15281749 (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: 15281749 - Airframe hours: 5236 - Engines: LYCOMING O-235-L2C 110 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: Aviation Training Consultants - Airworthiness certificate: Standard, Utility - Last inspection: 100 hour, June 14, 1994, 41 hours before - Departed: LZU, LAWRENCEVILLE, GA - Airport: PDK, Dekalb-Peachtree, runway 20R, 3,744 × 150 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 24; flight instructor, airline transport, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: right; flight hours: 2,340 total, 1,100 in this make and model, 2,260 as pilot in command, 330 in the last 90 days, 108 in the last 30 days, 3 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 120° at 2 knots - Visibility: 10 statute miles - Lowest ceiling: 3,500 ft broken - Temperature: 88 °F, dew point 73 °F - Altimeter: 30.00 inHg - Observed at: PDK, 2 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 19940709017969A](https://openairdocs.org/incident/19940709017969A), Jul 9, 1994: Cessna 152, Atlanta, GA, Substantial damage. Lost power turning final. CFI took over. Hit parked auto landing in parking lot. Low cyl values. Over engine tbo. ## Other investigations on N67318 (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 ATL90LA013](https://openairdocs.org/ntsb/ATL90LA013), Oct 25, 1989: Cessna 152 (N67318), Kinston, NC, substantial damage. Probable cause: THE PILOT'S DECISION TO DEPART FOR HIS DESTINATION AIRPORT WITH LESS THAN REQUIRED FUEL, AND HIS IMPROPER USE OF THE COMMUNICATIONS RADIO WHICH RESULTED IN HIS CIRCLING THE AIRPORT AND EXHAUSTING ALL… 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.