Document ID: chunk:federal_register_of_legislation:F2006B06035:body:0:p2
Version: federal_register_of_legislation:F2006B06035
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Character Range: 2951–6676

calibrated. This may be determined by using the procedures referenced in Requirement 1.

            For Model PA-46-350P aeroplanes:

             5.    Perform the following on the TIT System:

                1. Clean and inspect the TIT gauge and probe in accordance with the following procedures:

(i)       For serial numbers 4622001 through 4622200 and 4636001 through 4636020, utilise the PA-46-350P Maintenance Manual, Chapter 77-20-00 (section 1.C, page 1).

(ii)     For all serial numbers beginning with 4636021, utilise the PA-46-350P Maintenance Manual, Chapter 77-20-00 (section 1.C, page 1).

  b.    Calibrate the system in accordance with the following procedures:

(i)       For serial numbers 4622001 through 4622200 and 4636001 through 4636020, utilise the PA-46-350P Maintenance Manual, Chapter 77-20-00 (section 1.I, pages 4 through 7).

                  (ii)     For all serial numbers beginning with 4636021, calibration is not required.

             6.    Repair or replace any failed parts detected during the Requirement 5 inspection or calibration with serviceable parts as listed in Table 1.

  7.    Replace the probe with a new part number 481-389 or 481-392 probe.

             8.    Incorporate revised emergency procedures in Section 3 of the AFM/POH. This may be accomplished by inserting the following statement in the AFM/POH or by incorporating the appropriate revision, listed in Table 2, in the AFM/POH.

(i)       If the turbine inlet temperature indication fails during takeoff, climb, descent or landing, set power per the POH Section 5 Power Setting Table and then lean to the approximate POH Power Setting Table fuel flow plus 4 GPH.

(ii)     If the turbine inlet temperature indication fails after cruise power has been set, maintain the power setting and increase indicated fuel flow by 1 GPH. Continually monitor engine cylinder head and oil temperatures to avoid exceeding temperature limits.

                 9.    Lewis or Transicoil TIT gauges or probes may not be installed without assuring that they are airworthy and calibrated. This may be determined by using the procedures referenced in Requirement 5.

                        Table 1
Equipment Name and Manufacturer                    Part Number
Lewis Turbine Inlet Temperature Analog Indicator   471-008.
                                                   This is the only indicator that has a zero adjustment screw.
Lewis Turbine Inlet Temperature Digital Indicator  548-811.
                                                   Since this indicator does not have a zero adjustment screw, you must return it to the factory for adjustment or replacement.
Lewis Turbine Inlet Temperature Probe              471-009 for PA-46-310P aeroplanes and 481-389 or 481-392 for PA-46-350P
                                                   aeroplanes.

                        Table 2
AFM/POH                          Revision/Date           Affected Serial Numbers
Report No
Model PA-46-310P aeroplanes
VB-1200                           16/19 March 1999       46-8408001 through 46-8608067 and
                                                         4608001 through 4608007
VB-1300                           13/25 February 1999    4608008 through 4608140
Model PA-46-350P aeroplanes
VB-1332                           16/14 November 1997    4622001 through 4622200
VB-1609                           1/21 November 1997     463001 through 4636020
VB-1602                           1/28 November 1997     4636021 through 4636131
VB-1446                           New/3 December 1997    4636132 through 4636195
VB-1710                           New/23 February 1999   all serial numbers after 4636195

            Note