<< >> NASA ASRS Report 601019, November 2003

A BH206 helicopter pilot fails to properly preflight the aircraft resulting in starting the engine with the rotor still tied down.

Attributes
ACN	601019
Time
Date	200311
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air taxi
Make Model Name	Jet Ranger/Kiowa/206
Operating Under FAR Part	Part 135
Flight Phase	ground : preflight ground : parked
Flight Plan	VFR
Person 1
Affiliation	company : air taxi
Function	flight crew : single pilot
Experience	flight time last 90 days : 60 flight time total : 10500 flight time type : 3500
ASRS Report	601019
Person 2
Affiliation	company : air taxi
Function	flight crew : single pilot other personnel other
Experience	flight time last 90 days : 60 flight time total : 10500 flight time type : 3500
ASRS Report	601019
Events
Anomaly	non adherence : far
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

I had preflted the aircraft 4 hours earlier and did notice that the rear rotor blade was tied down. I connected the battery cart to the aircraft and got into the aircraft. I cranked the aircraft monitoring the gauges and occasionally looking outside. At 50-55% N1 the 'cdclic' moved forward and to the right, the aircraft almost simultaneously started shaking violently. I rolled the throttle off and I believe the engine shut down. This whole sequence occurred within 40 seconds, I believe. After things settled down, the paramedic came up to me and asked if I was ok, she then stabilized my neck. The nurse pulled the battery cart connector from the aircraft and called an ambulance. I didn't smell fuel and didn't get a good look of the aircraft at that time. I found out the next day that the main rotor blade that was tied down broke about 3 ft from the grip. That was the cause of the violent shaking.

Related reports:

• Pilot of an small aircraft sight-seeing helicopter noticed d...
• An A355 twin STAR helicopter on descent at 700 ft had the tr...
• An air carrier carj received a TCAS TA while on a 1 mi final...
• A bell 206 helicopter during a preflight check a power cord ...
• Air taxi helicopter pilot reported a fuel cap was discovered...
• Non flight safety item on helicopter detected on preflight.

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: A BH206 HELI PLT FAILS TO PROPERLY PREFLT THE ACFT RESULTING IN STARTING THE ENG WITH THE ROTOR STILL TIED DOWN.

Narrative: I HAD PREFLTED THE ACFT 4 HRS EARLIER AND DID NOTICE THAT THE REAR ROTOR BLADE WAS TIED DOWN. I CONNECTED THE BATTERY CART TO THE ACFT AND GOT INTO THE ACFT. I CRANKED THE ACFT MONITORING THE GAUGES AND OCCASIONALLY LOOKING OUTSIDE. AT 50-55% N1 THE 'CDCLIC' MOVED FORWARD AND TO THE R, THE ACFT ALMOST SIMULTANEOUSLY STARTED SHAKING VIOLENTLY. I ROLLED THE THROTTLE OFF AND I BELIEVE THE ENG SHUT DOWN. THIS WHOLE SEQUENCE OCCURRED WITHIN 40 SECONDS, I BELIEVE. AFTER THINGS SETTLED DOWN, THE PARAMEDIC CAME UP TO ME AND ASKED IF I WAS OK, SHE THEN STABILIZED MY NECK. THE NURSE PULLED THE BATTERY CART CONNECTOR FROM THE ACFT AND CALLED AN AMBULANCE. I DIDN'T SMELL FUEL AND DIDN'T GET A GOOD LOOK OF THE ACFT AT THAT TIME. I FOUND OUT THE NEXT DAY THAT THE MAIN ROTOR BLADE THAT WAS TIED DOWN BROKE ABOUT 3 FT FROM THE GRIP. THAT WAS THE CAUSE OF THE VIOLENT SHAKING.

Data retrieved from NASA's ASRS site as of July 2007 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.