19981008045999A

Accident · Substantial damage

FAA accident report · Cessna 207A · Napaskiak, AK · October 8, 1998

Date
October 8, 1998 · 13:15 local
Place
Napaskiak, AK
Airport
Napaskiak Airport
Phase of flight
Forced/Precautionary Landing
Operating rules
Air taxi and commuter (Part 135)
Operator
EPUA
Damage
Substantial damage
Aircraft
N6874M
NTSB investigation
NTSBANC99LA002
Reported as
Cessna 207A
Reported engine
Continental IO520F
Fatal injuries
0
Pilot’s flight hours
15,542 total1,608 in this make and model205 in the last 90 days

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.

(.4) The certificated airline transport pilot, with one passenger, was departing for another airport about 5 miles away. During the takeoff run, the engine surged. The pilot aborted the takeoff and returned to the departure point of the runway. He said he performed an engine power check which appeared satisfactory, and continued a second takeoff. The pilot did not recheck the fuel system for contamination. Following the second takeoff, the airplane climbed to about 300 feet MSL, and the engine RPM suddenly dropped to idle. Emergency procedures did not restore power. The airplane collided with trees during an off-airport landing, and received impact damage to both wing fuel tanks. The airplane came to rest inverted. The pilot said he drained every fuel sump on the airplane at the beginning of the day, and again before beginning the flight to pick up the passenger. Following retrieval of the airplane, an FAA airworthiness inspector examined the airplane. He found about 1/2 cup of water in the fuel system. One wing sump drain was partially blocked by silt. With clean fuel, the engine was started and ran at an idle. The engine later produced full power on an engine test sta ND. (-23) after take-off on runway 19, at approximately 300 feet above ground level, the engine failed. The pilot turned to the west, attempted re-start and emergency procedures and the aircraft crashed into thick alders and turned upside down. The aircraft was destroyed. The pilot and sole passenger complained of minor injury. Minutes before this accident, the pilot aborted a take-off because of engine surging, returned to take-off position, ran up engine to his satisfaction and took off for the flight that resulted in this accident.

As the FAA filed it

(.4) THE CERTIFICATED AIRLINE TRANSPORT PILOT, WITH ONE PASSENGER, WAS DEPARTING FOR ANOTHER AIRPORT ABOUT 5 MILES AWAY. DURING THE TAKEOFF RUN, THE ENGINE SURGED. THE PILOT ABORTED THE TAKEOFF AND RETURNED TO THE DEPARTURE POINT OF THE RUNWAY. HE SAID HE PERFORMED AN ENGINE POWER CHECK WHICH APPEARED SATISFACTORY, AND CONTINUED A SECOND TAKEOFF. THE PILOT DID NOT RECHECK THE FUEL SYSTEM FOR CONTAMINATION. FOLLOWING THE SECOND TAKEOFF, THE AIRPLANE CLIMBED TO ABOUT 300 FEET MSL, AND THE ENGINE RPM SUDDENLY DROPPED TO IDLE. EMERGENCY PROCEDURES DID NOT RESTORE POWER. THE AIRPLANE COLLIDED WITH TREES DURING AN OFF-AIRPORT LANDING, AND RECEIVED IMPACT DAMAGE TO BOTH WING FUEL TANKS. THE AIRPLANE CAME TO REST INVERTED. THE PILOT SAID HE DRAINED EVERY FUEL SUMP ON THE AIRPLANE AT THE BEGINNING OF THE DAY, AND AGAIN BEFORE BEGINNING THE FLIGHT TO PICK UP THE PASSENGER. FOLLOWING RETRIEVAL OF THE AIRPLANE, AN FAA AIRWORTHINESS INSPECTOR EXAMINED THE AIRPLANE. HE FOUND ABOUT 1/2 CUP OF WATER IN THE FUEL SYSTEM. ONE WING SUMP DRAIN WAS PARTIALLY BLOCKED BY SILT. WITH CLEAN FUEL, THE ENGINE WAS STARTED AND RAN AT AN IDLE. THE ENGINE LATER PRODUCED FULL POWER ON AN ENGINE TEST STA ND. (-23) AFTER TAKE-OFF ON RUNWAY 19, AT APPROXIMATELY 300 FEET ABOVE GROUND LEVEL, THE ENGINE FAILED. THE PILOT TURNED TO THE WEST, ATTEMPTED RE-START AND EMERGENCY PROCEDURES AND THE AIRCRAFT CRASHED INTO THICK ALDERS AND TURNED UPSIDE DOWN. THE AIRCRAFT WAS DESTROYED. THE PILOT AND SOLE PASSENGER COMPLAINED OF MINOR INJURY. MINUTES BEFORE THIS ACCIDENT, THE PILOT ABORTED A TAKE-OFF BECAUSE OF ENGINE SURGING, RETURNED TO TAKE-OFF POSITION, RAN UP ENGINE TO HIS SATISFACTION AND TOOK OFF FOR THE FLIGHT THAT RESULTED IN THIS ACCIDENT.

NTSB investigation

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

Other reports on N6874M · 2

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