Service difficulty report · Door · Dhav DHC6*

Difficulty date
January 15, 2016
Submitted
April 22, 2016
Operation
General aviation
Make and model
Dhav DHC6*
Aircraft serial
905400
Engine
Pwa PT6A34
Part
Door
Condition
Mismanufactured
Location
Cockpit
Part time
12 hours
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(CAN) DURING ROUTINE MAINTENCE, FOUND 2 PROBLEMS WITH THE ICA`S. ON AN EMMA, EQUALIZED MAINTENANCE MAXIMUM AVAILABILITY, INSPECTION CARD 15, SECTION 3B, THE FLIGHT COMPARTMENT DOORS ARE TO BE INSPECTED FOR HIRF BONDING WITH A SPECIFICATION OF 10 MILLIOHMS. THE FLIGHT COMPARTMENT DOORS ARE NOT BONDED AT ALL. THE AME IS FORCED TO LEAVE THIS TASK CARD INCOMPLETE AS THERE IS NO POSSIBLE WAY TO ACHIEVE THE SPECIFICATION IN THE INSPECTION. ON THE FLIGHT DATA CORRELATION CHECK, CHAPTER 31-31-00, PAGE 7, INSTRUCTION 13, TEST FLAP PARAMETER, INSTRUCTIONS READ ANGLE MEASURED ON INBD FLAP WITH NOTE 37 DEGREE POSITION CORRESPONDS TO AN INBD FLAP ANGLE OF 40 DEGREES. ALL OTHER ANGLES CORRESPOND TO THE LISTED FLAP LEVER ANGLE. INCORRECT THE INBD FLAP MOVES 0 TO 60 DEGREES AND THE OTBD FOREFLAP MOVES 0 TO 26 DEGREES. TOGETHER THEY HAVE A CUMULATIVE EFFECT OF 0 TO 40 DEGREES. HOWEVER AN ANGLE CHANGE OF 40 DEGREES CAN BE MEASURED ON 97.5 INBD FORE FLAP HINGE ARM AND NOT ON THE FLAP AS INSTRUCTED. PLEASE DISREGARD FLAP MEASURING PROBLEM. SUBSEQUENT TESTS HAVE PROVEN 0-40 DEGREE MEASUREMENTS CAN BE AT THE INBD FOR FLAP AS DESCRIBED IN INSTRUCTIONS.