# NTSB NYC97LA049: Cessna 152, N67898, North Andover, MA, January 29, 1997 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: January 29, 1997, 10:04 local (15:04 UTC) - Place: North Andover, MA - Location: 42.7087° N, 71.1074° W: Placed by OpenAirDocs from NTSB’s distance and direction from LAWRENCE MUNI (LWM), within about a mile (OpenAirDocs) - Nearby events: https://openairdocs.org/map.md?lat=42.7087&lon=-71.1074&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report February 2, 1998 - Report: Approved by Office Director - NTSB case key (mKey): 39323 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC97LA049 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/39323/pdf - Page: https://openairdocs.org/ntsb/NYC97LA049 ## Probable cause Fuel vents blocked by frozen moisture which resulted in restricted fuel flow to the engine and subsequent loss of engine power. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power(partial) - nonmechanical, approach - vfr pattern - final approach - fuel system,vent - blocked(total) (cause) - weather condition - temperature,low - Forced landing, descent - emergency - In flight collision with object, emergency descent/landing - object - tree(s) ## Analysis While on a 2 mile final approach to a runway, the airplane's engine lost power. The pilot was unable to restore full power, and could not maintain altitude. The airplane then struck trees about 50 feet above the ground. During preflight inspection, the right wing fuel tank drain was frozen, and had to be heated. The first two fuel samples revealed a small amount of water, but the third and fourth samples were clear. The left tank drain was not frozen, and contained a small amount of water. No water was detected in the filter drain. Examination of the wreckage, while the outside ambient temperature (OAT) was below freezing, revealed a small amount of water and contaminants in the carburetor bowl, and the fuel drain. When the fuel caps were removed, the sounds of the tanks expanding from the in rushing air were heard. After the wings were removed and placed in a heated hanger, approximately 1 cup of dirty water was found in the fuel tanks. The engine was test run satisfactorily. At the time of the accident, the OAT had been below freezing for the last 24 hours. ## Factual narrative On January 29, 1997, about 1004 eastern standard time, a Cessna 152, N67898, was destroyed when it experienced a partial loss of engine power and struck trees, while on approach to the Lawrence Airport (LWN), North Andover, Massachusetts. The certificated private pilot and passenger were not injured. Visual meteorological conditions prevailed for the personal flight which originated from Bedford, Massachusetts, about 0940. No flight plan had been filed for the flight which was conducted under 14 CFR Part 91. In a written statement, the pilot said he flew a final approach to runway 32 at LWN. He further stated: "...Shortly after starting a two mile final, the engine started to lose power. At this point I believe we were about 1,300 MSL, 2,000-2,100 rpm, carb heat on, mixture full rich, 80 KIAS...As we tried all combinations of more/less throttle, more/less mixture, more/less carb heat, the engine lost even more power - it would occasionally reach 1,200-1,300 rpm but was mostly at about 1,000 rpm...." The pilot was unable to restore full engine power, and could not maintain altitude. The airplane struck trees about 50 feet above the ground, and then settled through the trees and came to rest with its nose on the ground. The pilot also reported that during his preflight inspection, the right wing tank fuel drain was frozen and had to be heated. After heating, the first fuel sample revealed a small amount of water, but the third and fourth samples were clear. The left tank drain was not frozen, and contained a small amount of water in the first sample. There was no water detected in the filter drain sample. Examination of the wreckage, by a Federal Aviation Administration (FAA) Inspector, while the ambient temperature was below freezing, revealed a small amount of water and contaminants in the carburetor bowl, and the fuel drain. When the fuel caps were removed, the sound of air rushing into the tank was heard. Sounds of the tanks expanding from the in-rushing air was also heard. After the wings were removed and placed in a heated hanger, approximately 1 cup of dirty water was found in the fuel tanks. The engine was test run satisfactorily by an FAA Inspector using a temporary fuel connection. This was the third occurrence of a power loss with one of several airplanes owned by the operator within a 5 day period. The operator was using automobile gasoline purchased at a local service station. The airplanes were refueled from a tank placed on the back of a pickup truck. The operator reported that fuel filters were changed once a month. At the time of the accident the outside air temperature was about 20 degrees Fahrenheit, and had been below freezing for at least 24 hours. ## Aircraft - Registration: [N67898](https://openairdocs.org/deregistered/N67898-2008-07-10), registration cancelled 2008-07-10, S/N 15282084, built 1978 (OpenAirDocs) - Reported make and model: Cessna 152 - Registry model: [Cessna 152](https://openairdocs.org/model/cessna-152) (registry code 2071835) (OpenAirDocs) - Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs) - Category: Airplane - Serial number: 15282084 - Airframe hours: 4339 - Engines: Lycoming O-235-L2C 110 horsepower reciprocating - Damage: Destroyed - Flight: Personal, Part 91 - Registered owner: Executive Flyers Aviation Inc. - Airworthiness certificate: Standard, Normal; Standard, Utility - Departed: BED, BEDFORD, MA - Destination: LWM, LAWRENCE, MA - Airport: LWM, Lawrence, runway 32, 3,901 × 100 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 55; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 66 total, 60 in this make and model, 30 as pilot in command, 9 in the last 90 days, 4 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 280° at 8 knots, gusting 20 - Visibility: 40 statute miles - Lowest ceiling: none - Altimeter: 29.00 inHg - Observed at: LWM, 1 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 19970129000969A](https://openairdocs.org/incident/19970129000969A), Jan 29, 1997: Cessna 152, Lawrence, MA, Destroyed. Aircraft delcared emergency on .5 mile runway 32, engine quit. Aircraft landed in trees. (-23) fuel lines frozen. Fuel starvation caused loss of power. Crashed… 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.