Regulatory Evaluation

Docket No. FAA- Directorate Identifier: 2011-NE-04-AD

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Estimated Costs:

Action

(e.g., Inspection, 

replacement)

Costs per Product (e.g., aircraft, engine, 

propeller, appliance)

Work-hours

(include 

access, testing, 

and close-up)

Labor 

cost 

(@$85/h

our)

Parts Cost Total Costs 

(labor + 

parts)

Number of 

U.S. 

Registered

Products

Total Cost 

for U.S. Fleet

Initial FPI Inspect 

and return disk to 

Honeywell for 

additional 

inspections

20.0 $1,700.0

0

$1,700.00 90 $153,000.00

Replace disks that 

fail initial 

inspection

1.0 $ 85.00 $19,000 $19,085.00 1 $19,085.00

Repetitive FPI 

Inspect and return 

disk to Honeywell 

for additional 

inspections

20.0 $1,700.0

0

$1,700.00 89 $151,300.00

Replace disks that 

fail repetitive 

inspection

1.0 $ 85.00 $19,000 $19,085.00 1 $19,085.00

Repetitive FPI 

Inspect and return 

disk to Honeywell 

for additional 

inspections

20.0 $1,700.0

0

$1,700.00 88 $149,600.00

Replace disks that 

fail repetitive 

inspection

1.0 $ 85.00 $19,000 $19,085.00 1 $19,085.00

$ 0.00 $ 0.00 $ 0.00

$ 0.00 $ 0.00 $ 0.00

$ 0.00 $ 0.00 $ 0.00

$ 0.00 $ 0.00 $ 0.00

$ 0.00 $ 0.00 $ 0.00

$ 0.00 $ 0.00 $ 0.00

$ 0.00 $ 0.00 $ 0.00

$ 0.00 $ 0.00 $ 0.00

$ 0.00 $ 0.00 $ 0.00

$ 0.00 $ 0.00 $ 0.00
$ 0.00 $ 0.00 $ 0.00

$ 0.00 $ 0.00 $ 0.00

$ 0.00 $ 0.00 $ 0.00

$ 0.00 $ 0.00 $ 0.00

The known number of products in compliance:

Total Costs of compliance for U.S. fleet: $511,155

Costs covered under warranty (if known) $

Special considerations for Economic Analysis (Use this field to explain anything in the Estimated 

Costs table that was assumed or might not be obvious. This field can also be used to explain warranty 

costs):

Note 1: Assumes 50% of 359 suspect disks are still in service; also assumes 50% of 180 

disks in active service are in US engines; therefore, approximately 90 disks will require 

FPI and EC inspections and an average of one disk will be rejected and will require a 

replacement 

Note 2: Assumes an average of two re-inspections by FPI and EC before the disk is 

retired. One disk will be removed from service for the entire re-inspection cycle of 89 

and 88 engines respectively. 

Note 3: Cost does not include engine disassembly, inspection, and consumables incurred 

during normal periodic hot section engine inspection. Cost does not include consumables 

during unscheduled engine removals.

Executive Order 12866:

Could the AD be considered a “significant regulatory action”?

YES* NO 

*Explanation: 

DOT Regulatory Policies and Procedures:

Is the AD significant? 

YES* NO 

*Explanation: 

Regulatory Flexibility Act:

Will the AD have a significant economic impact on a substantial number of small entities? Explain

for either a Yes or No answer.

YES NO 

Explanation: 

Intrastate Aviation in Alaska:

This AD could affect intrastate aviation in Alaska. Is it appropriate to include specific requirements 

for aircraft operated in Alaska where aviation might be the only mode of transportation?

YES* NO 

*Explanation: