A C208 on climb at 6500 ft had abnormal sound from engine and temperature 780 degrees and rising. Re...

Attributes
ACN	698653
Time
Date	200605
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 6500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Caravan 1 208A
Operating Under FAR Part	Part 91
Flight Phase	climbout : initial
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : multi engine pilot : commercial
Experience	flight time last 90 days : 50 flight time total : 1600 flight time type : 300
ASRS Report	698653
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure
Independent Detector	aircraft equipment other aircraft equipment : itt other flight crewa
Resolutory Action	flight crew : landed in emergency condition flight crew : diverted to another airport
Consequence	other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : training performance deficiency : scheduled maintenance performance deficiency : inspection performance deficiency : non compliance with legal requirements
Supplementary
Problem Areas	Chart Or Publication Maintenance Human Performance Aircraft
Primary Problem	Aircraft

Narrative:

Engine start-up normal (ng 16%; itt 720) outside air temperature 78 degrees; no wind. Taxied to pick up skydivers. Takeoff power setting normal 1800 torque; 730 temperature; 95% ng. During climb at approximately 6500 ft; loud sound started from front of aircraft (sounded like wheel bearing on a large truck that was going out; very little vibration). Upon hearing sound; I stated to jumper in right seat 'that doesn't sound good;' as I started to scan engine gauges. As I scanned across observed itt at 780 and slowly rising. By the time I started to reduce throttle temperature had reached 805. I reduced throttle to approximately half; no change in sound; but temperature decreased but started to rise again slowly. I told jumpers to exit aircraft if they could (we were right over field). I then reduced throttle to idle; observed temperature fall back and then start to rise again; still not much change in sound of noise; so upon reaching idle I then feathered the propeller and moved condition lever to cutoff. Jumpers were still exiting the aircraft at this point. Total time from hearing noise to engine shutdown was approximately 1 - 1 1/2 mins at the most. As there was still jumpers exiting when propeller was stopped; after all jumpers away; I then secured engine and set up for best glide. Set up on and extended base leg for runway 8 and called unicom that I was on extended base for runway 8; power off landing. On short final with runway assured; I added 20 degrees flaps and had nice landing about 1/2 way down runway. Coasted to parking area at east end drop zone. Engine had around 1700 hours on it. A few factors contributing to this early failure: 1) first fuel nozzle change at 1000+ hours (recommended 400 hours). 2) lack of start cart gpu which would allow cooler starts. 3) infrequent compressor washes (heavy salt from large waves). 4) 12 pilots in 1.5 yrs and no real training program.

Original NASA ASRS Text

Title: A C208 ON CLB AT 6500 FT HAD ABNORMAL SOUND FROM ENG AND TEMP 780 DEGS AND RISING. REDUCED THROTTLE TEMP ROSE TO 805 DEGS. ENG SHUT DOWN.

Narrative: ENG START-UP NORMAL (NG 16%; ITT 720) OUTSIDE AIR TEMP 78 DEGS; NO WIND. TAXIED TO PICK UP SKYDIVERS. TKOF PWR SETTING NORMAL 1800 TORQUE; 730 TEMP; 95% NG. DURING CLB AT APPROX 6500 FT; LOUD SOUND STARTED FROM FRONT OF ACFT (SOUNDED LIKE WHEEL BEARING ON A LARGE TRUCK THAT WAS GOING OUT; VERY LITTLE VIBRATION). UPON HEARING SOUND; I STATED TO JUMPER IN R SEAT 'THAT DOESN'T SOUND GOOD;' AS I STARTED TO SCAN ENG GAUGES. AS I SCANNED ACROSS OBSERVED ITT AT 780 AND SLOWLY RISING. BY THE TIME I STARTED TO REDUCE THROTTLE TEMP HAD REACHED 805. I REDUCED THROTTLE TO APPROX HALF; NO CHANGE IN SOUND; BUT TEMP DECREASED BUT STARTED TO RISE AGAIN SLOWLY. I TOLD JUMPERS TO EXIT ACFT IF THEY COULD (WE WERE RIGHT OVER FIELD). I THEN REDUCED THROTTLE TO IDLE; OBSERVED TEMP FALL BACK AND THEN START TO RISE AGAIN; STILL NOT MUCH CHANGE IN SOUND OF NOISE; SO UPON REACHING IDLE I THEN FEATHERED THE PROP AND MOVED CONDITION LEVER TO CUTOFF. JUMPERS WERE STILL EXITING THE ACFT AT THIS POINT. TOTAL TIME FROM HEARING NOISE TO ENG SHUTDOWN WAS APPROX 1 - 1 1/2 MINS AT THE MOST. AS THERE WAS STILL JUMPERS EXITING WHEN PROP WAS STOPPED; AFTER ALL JUMPERS AWAY; I THEN SECURED ENG AND SET UP FOR BEST GLIDE. SET UP ON AND EXTENDED BASE LEG FOR RWY 8 AND CALLED UNICOM THAT I WAS ON EXTENDED BASE FOR RWY 8; PWR OFF LNDG. ON SHORT FINAL WITH RWY ASSURED; I ADDED 20 DEGS FLAPS AND HAD NICE LNDG ABOUT 1/2 WAY DOWN RWY. COASTED TO PARKING AREA AT E END DROP ZONE. ENG HAD AROUND 1700 HRS ON IT. A FEW FACTORS CONTRIBUTING TO THIS EARLY FAILURE: 1) FIRST FUEL NOZZLE CHANGE AT 1000+ HRS (RECOMMENDED 400 HRS). 2) LACK OF START CART GPU WHICH WOULD ALLOW COOLER STARTS. 3) INFREQUENT COMPRESSOR WASHES (HVY SALT FROM LARGE WAVES). 4) 12 PLTS IN 1.5 YRS AND NO REAL TRAINING PROGRAM.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

A C208 on climb at 6500 ft had abnormal sound from engine and temperature 780 degrees and rising. Reduced throttle temperature rose to 805 degrees. Engine shut down.