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19980515009769A

Accident · Destroyed
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FAA accident report · Cessna 175B · Farmingdale, NY · May 15, 1998

FAA Aviation Safety Information Portal

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Date
May 15, 1998 · 12:58 local
Place
Farmingdale, NY
Airport
Republic
Phase of flight
Forced/Precautionary Landing
Operating rules
General operating rules (Part 91)
Damage
Destroyed
Aircraft
N7SB
NTSB investigation
NTSBNYC98LA108
Reported as
Cessna 175B
Reported engine
Continental GO300*
Fatal injuries
0
Pilot’s flight hours
1,641 total600 in this make and model72 in the last 90 days
N7SBRegistration cancelled Oct 7, 1999 · Cessna 175BS/N 17556947Airframe modelCessna 175B

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Acft took off from frg arpt, lost power and elected to land on roof top, landed nose first in a pile of debris, (-23) no narrative. (.4)the pilot reported that he made a normal, flaps-up takeoff with full throttle. The point on the runway where he became airborne was about 2,800 feet from where the initial takeoff roll began. The pilot stated he climbed out at 90 to 100 mph, and 2,400 to 2,500 RPM. He said that the RPM dropped to 2,100, and then to 1,900. The pilot then performed a forced landing to a building roof top. According to the owner's manual, the calculated takeoff distance was less than 700 feet. Certification data revealed that at 90 to 100 mph, the geared engine should have produced about 2,900 to 3,000 RPM. A carburetor icing probability chart showed that for the ambient conditions, and with less than full power, moderate icing could result. A manufacturer's service instruction stated that 'the possibility of throttle icing at wide throttle openings is very remote, so remote in fact, that it can be disregarded.'

As the FAA filed it

ACFT TOOK OFF FROM FRG ARPT, LOST POWER AND ELECTED TO LAND ON ROOF TOP, LANDED NOSE FIRST IN A PILE OF DEBRIS, (-23) NO NARRATIVE. (.4)THE PILOT REPORTED THAT HE MADE A NORMAL, FLAPS-UP TAKEOFF WITH FULL THROTTLE. THE POINT ON THE RUNWAY WHERE HE BECAME AIRBORNE WAS ABOUT 2,800 FEET FROM WHERE THE INITIAL TAKEOFF ROLL BEGAN. THE PILOT STATED HE CLIMBED OUT AT 90 TO 100 MPH, AND 2,400 TO 2,500 RPM. HE SAID THAT THE RPM DROPPED TO 2,100, AND THEN TO 1,900. THE PILOT THEN PERFORMED A FORCED LANDING TO A BUILDING ROOF TOP. ACCORDING TO THE OWNER'S MANUAL, THE CALCULATED TAKEOFF DISTANCE WAS LESS THAN 700 FEET. CERTIFICATION DATA REVEALED THAT AT 90 TO 100 MPH, THE GEARED ENGINE SHOULD HAVE PRODUCED ABOUT 2,900 TO 3,000 RPM. A CARBURETOR ICING PROBABILITY CHART SHOWED THAT FOR THE AMBIENT CONDITIONS, AND WITH LESS THAN FULL POWER, MODERATE ICING COULD RESULT. A MANUFACTURER'S SERVICE INSTRUCTION STATED THAT 'THE POSSIBILITY OF THROTTLE ICING AT WIDE THROTTLE OPENINGS IS VERY REMOTE, SO REMOTE IN FACT, THAT IT CAN BE DISREGARDED.'

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.

NTSB NYC98LA108Accident · Minor injuriesLimited investigationFinal reportFarmingdale, NYThe engine's inability to provide full power, and the pilot's failure to use performance data. Factors in the accident were conditions conductive for carburetor icing at reduced power, and the unsuitable terrain during the forced landing.May 15, 1998 · Destroyed

Other reports on N7SB · 1

Matched to the same aircraft by N-number and date.

Incident 19870804080809IFcd/Prec Ldg From Cruise · New York, NYExperienced engine power reduction. Precautionary landing. Mechanic inspection did not reveal any cause.Aug 4, 1987