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Correction

Revisions to Cockpit Voice Recorder and Digital Flight Data Recorder Regulations

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Start Preamble Start Printed Page 15280 End Preamble Start Supplemental Information

Correction

In rule document E8-3949 beginning on page 12542 in the issue of Friday, March 7, 2008, make the following corrections:

1. On page 12565, Appendix E to Part 91 is corrected as follows:

Appendix E to Part 91.—Airplane Flight Recorder Specifications

ParametersRangeInstalled system 1 minimum accuracy (to recovered data)Sampling interval (per second)Resolution 4 read out
*         *         *         *         *         *         *
Stabilizer Trim Position or Pitch Control Position 5Full Range±3% unless higher uniquely required13 1%
*         *         *         *         *         *         *
1 When data sources are aircraft instruments (except altimeters) of acceptable quality to fly the aircraft, the recording system, excluding these sensors (but including all other characteristics of the recording system), shall contribute no more than half of the values in this column.
*   *   *   *   *   
3 Percent of full range.
4 This column applies to aircraft manufactured after October 11, 1991.
5 For Pitch Control Position only, for all aircraft manufactured on or after April 7, 2010, the sampling interval (per second) is 8. Each input must be recorded at this rate. Alternately sampling inputs (interleaving) to meet this sampling interval is prohibited.

2. On the same page, Appendix F to Part 91 is corrected as follows:

Appendix F to Part 91.—Helicopter Flight Recorder Specifications

ParametersRangeInstalled system 1 minimum accuracy (to recovered data)Sampling interval (per second)Resolution 3 read out
*         *         *         *         *         *         *
Collective 4Full Range±3%22 1%
Start Printed Page 15281
Pedal Position 4Full Range±3%22 1%
Lat. Cyclic 4Full Range±3%22 1%
Long. Cyclic 4Full Range±3%22 1%
Controllable Stabilator Position 4Full Range±3%22 1%
1 When data sources are aircraft instruments (except altimeters) of acceptable quality to fly the aircraft, the recording system, excluding these sensors (but including all other characteristics of the recording system), shall contribute no more than half of the values in this column.
2 Percent of full range.
3 This column applies to aircraft manufactured after October 11, 1991.
4 For all aircraft manufactured on or after April 7, 2010, the sampling interval per second is 4.

3. On page 12571, Appendix C to Part 135 is corrected as follows:

Appendix C to Part 135.—Helicopter Flight Recorder Specifications

ParametersRangeInstalled system 1 minimum accuracy (to recovered data)Sampling interval (per second)Resolution 3 read out
*         *         *         *         *         *         *
Collective 4Full Range±3%22 1%
Pedal Position 4Full Range±3%22 1%
Lat. Cyclic 4Full Range±3%22 1%
Long. Cyclic 4Full Range±3%22 1%
Controllable Stabilator Position 4Full Range±3%22 1%
1 When data sources are aircraft instruments (except altimeters) of acceptable quality to fly the aircraft, the recording system, excluding these sensors (but including all other characteristics of the recording system), shall contribute no more than half of the values in this column.
2 Percent of full range.
3 This column applies to aircraft manufactured after October 11, 1991.
4 For all aircraft manufactured on or after April 7, 2010, the sampling interval per second is 4.

4. On the same page, Appendix E to Part 135 is corrected as follows:

Appendix E to Part 135.—Helicopter Flight Recorder Specifications

ParametersRangeAccuracy sensor input to DFDR readoutSampling interval (per second)Resolution 2 read out
*         *         *         *         *         *         *
Pilot Input—Primary Controls (Collective, Longitudinal Cyclic, Lateral Cyclic, Pedal) 3Full Range±3%21 0.5%
*         *         *         *         *         *         *
1 Percent of full range.
2 This column applies to aircraft manufactured after October 11, 1991.
3 For all aircraft manufactured on or after April 7, 2010, the sampling interval per second is 4.
End Supplemental Information

[FR Doc. Z8-3949 Filed 3-20-08; 8:45 am]

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