19990829024669A

Accident · Destroyed

FAA accident report · Cessna 170B · Cooper Landing, AK · August 29, 1999

Date
August 29, 1999 · 13:40 local
Place
Cooper Landing, AK
Phase of flight
Normal Cruise
Operating rules
General operating rules (Part 91)
Damage
Destroyed
Aircraft
N3402D
NTSB investigation
NTSBANC99FA128
Reported as
Cessna 170B
Reported engine
Lycoming O360A1A
People aboard
2
Fatal injuries
2
Pilot’s flight hours
600 total

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.

(.19) On August 29, 1999, at an estimated time of 1340 Alaska daylight time, a float equipped Cessna 170B airplane, N3402D, was destroyed by impact and postimpact fire after colliding with mountainous terrain, about 4.3 miles north-northeast of Cooper Landing, Alaska, at longitutde 60 degrees, 32.586 minutes north, and longitude 149 degrees, 43.760 minutes west. The airplane was being operated by the pilot. The private certificated pilot, and the sole passenger, received fatal injuries. Visual meteorological conditions prevailed in the area. The flight originated at the summit lake seaplane base, located 7 miles northwest of moose pass, Alaska, about 1320. After departure from summit lake, a family member reported the pilot intended to fly over glaciers near seward, Alaska, and then return to anchorage, Alaska, for Landing at a private lake. The airplane did not arrive, and was reported overdue on August 30, 1999, at 1011. Search personnel located the wreckage at 3,100 feet MSL on August 31, 1999, at 1522. (-23) on August 29, 1999, a float equipped Cessna 170B airplane N3402D, was destroyed by impact and post impact fire after colliding with mountainous terrain. The pilot and the sole passenger received fatal injuries. (.4) the private certificated pilot departed on a cross-country flight from a lake in a float equipped airplane. He intended to fly over glaciers in the area, and return to a private lake. The airplane did not arrive, and was reported overdue. Search personnel located the wreckage at 3,100 feet MSL, two days later. The wreckage was resting in a near vertical attitude in mountainous terrain. Except for the empennage, a portion of one wing, and the floats, the airplane was consumed by fire. VFR conditions prevailed. A postaccident examination of the airplane did not reveal any mechanical malfunction.

As the FAA filed it

(.19) ON AUGUST 29, 1999, AT AN ESTIMATED TIME OF 1340 ALASKA DAYLIGHT TIME, A FLOAT EQUIPPED CESSNA 170B AIRPLANE, N3402D, WAS DESTROYED BY IMPACT AND POSTIMPACT FIRE AFTER COLLIDING WITH MOUNTAINOUS TERRAIN, ABOUT 4.3 MILES NORTH-NORTHEAST OF COOPER LANDING, ALASKA, AT LONGITUTDE 60 DEGREES, 32.586 MINUTES NORTH, AND LONGITUDE 149 DEGREES, 43.760 MINUTES WEST. THE AIRPLANE WAS BEING OPERATED BY THE PILOT. THE PRIVATE CERTIFICATED PILOT, AND THE SOLE PASSENGER, RECEIVED FATAL INJURIES. VISUAL METEOROLOGICAL CONDITIONS PREVAILED IN THE AREA. THE FLIGHT ORIGINATED AT THE SUMMIT LAKE SEAPLANE BASE, LOCATED 7 MILES NORTHWEST OF MOOSE PASS, ALASKA, ABOUT 1320. AFTER DEPARTURE FROM SUMMIT LAKE, A FAMILY MEMBER REPORTED THE PILOT INTENDED TO FLY OVER GLACIERS NEAR SEWARD, ALASKA, AND THEN RETURN TO ANCHORAGE, ALASKA, FOR LANDING AT A PRIVATE LAKE. THE AIRPLANE DID NOT ARRIVE, AND WAS REPORTED OVERDUE ON AUGUST 30, 1999, AT 1011. SEARCH PERSONNEL LOCATED THE WRECKAGE AT 3,100 FEET MSL ON AUGUST 31, 1999, AT 1522. (-23) ON AUGUST 29, 1999, A FLOAT EQUIPPED CESSNA 170B AIRPLANE N3402D, WAS DESTROYED BY IMPACT AND POST IMPACT FIRE AFTER COLLIDING WITH MOUNTAINOUS TERRAIN. THE PILOT AND THE SOLE PASSENGER RECEIVED FATAL INJURIES. (.4) THE PRIVATE CERTIFICATED PILOT DEPARTED ON A CROSS-COUNTRY FLIGHT FROM A LAKE IN A FLOAT EQUIPPED AIRPLANE. HE INTENDED TO FLY OVER GLACIERS IN THE AREA, AND RETURN TO A PRIVATE LAKE. THE AIRPLANE DID NOT ARRIVE, AND WAS REPORTED OVERDUE. SEARCH PERSONNEL LOCATED THE WRECKAGE AT 3,100 FEET MSL, TWO DAYS LATER. THE WRECKAGE WAS RESTING IN A NEAR VERTICAL ATTITUDE IN MOUNTAINOUS TERRAIN. EXCEPT FOR THE EMPENNAGE, A PORTION OF ONE WING, AND THE FLOATS, THE AIRPLANE WAS CONSUMED BY FIRE. VFR CONDITIONS PREVAILED. A POSTACCIDENT EXAMINATION OF THE AIRPLANE DID NOT REVEAL ANY MECHANICAL MALFUNCTION.

NTSB investigation

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