Regulatory Evaluation 

Docket No. FAA- Directorate Identifier: -AD 

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they do JJOt, click (or Tabj into and then out r?f'tlle clwnged cell. 

Estimated Costs: 

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

(e.g., Inspection, propeller, appliance) 

Work-hours Labor Parts Cost Total Costs Number of Total Cost replacement) (include cost (labor+ u.s. for U.S. Fleet Do not include oncondition costs here access, testing, (@$85/h parts) Registered 

and close-up) our) Products 

Forward Passenger 

CompartmentPotable Water ) 

System Coupling 33.0 $500 139 ' ' 

Inspection and 

Replacement 

(Part l) I \ 

Forward Passenger 

CompartmentPotable Water 

System Coupling 4.2 $500 1391 ' 

Inspection and 

Replacement 

(Part 2) 

I 

Forward Passenger 

CompartmentPotable Water 

System Coupling- 247.0 $500.0 ? 139,_0 

Spray Shroud 

Installation 

(Part 3) 

I 

I { 

11. "'-c. ~, ---

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'"""' ) - -t/ l 
I l I J I l I l 

The known number of products in compliance: 

Total Costs of compliance for U.S. tleet: $3,566,323 

Costs covered under warranty (if/mown) $ 

On-Condition Costs: ~ 

Action Work-hours Labor cost Parts Cost Cost per Product 

(e.g., Inspection, (include access, (@$85/hour) 

replacement) testing, and closeup) 

•i.\ ,, 

" '\_ 

\ 

I I 

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): 

Executive Order 12866: 

Could the AD ~ be considered a "significant regulatory action"? ~ 

*Explanation: 

DOT Regulatory Policies and Procedures: 

Is the AD significant? ~ 

*Explanation: 

Regulatory Flexibility Act: 

YES* 0 NO [8J 

YES* 0 NO [8J 

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

either a Yes or No answer.~ 

YES 0 NO ['g) 

Explanation: 

Intrastate Aviation in Alaska: 

This AD could atfect 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* 0 NO [8J 

*Explanation: 
{In Archive} RE: 767 Potable Water System Coupling Leakage ~ 

Stanley Chen tP Richard Price 05/14/2014 03:36PM 

ANM-150S, Cabin Saf. & Env. Sys. Brn. Rnt, WA . 

Stanley Chen 

This message is being viewed in an archive. 

Hi Rick, 

Sorry for the delay but I finally got the reply back from Boeing: 

For the Cost section: 

1) Please verify the hours for installing the spray shrouds (is 24 7 hours and $500 for parts correct?) 

It varies from position to position, but on average, assume just 0.5 man-hour. That does not 

account for the time to access I close access once done. Total time per shroud location, including 

getting access and closing access would be 2.5 man-hour . 

• Just averaging the cost for all the shroud/shield costs above works out to $330 per shroud 

or shield 

2) Please determine the number of hours it takes to replace the coupling, and the parts cost to replace the 

coupling (if there is a parts cost at all) 

The labor hour to replace one coupling is ( .15 man-hour). 

The cost per coupling varies. The weighted average cost per coupling would be about $53 

per coupling. 

3) Please verify that paragraphs (g) and (i) are acceptable/true and see Marcia's comments in each of 

those paragraphs. 

Paragraph (g) currrently say: "Do a general visual inspection for plastic couplings, and install new spray 

shrouds (including a new hose assembly , as applicable) and do all applicable corrective actions in 

accordance withe the Accomplishment Instructions of Boeing Alert Service Bulletin 767-38A0073, dated 

Nov 12. 2013." This can be better stated to say: 

"Do a general visual inspection for plastic potable water couplings, and replace plastic couplings with 

metal couplings. In addition, install spray shrouds (including a new hose assembly) as applicable. 

Perform all applicable corrective actions in accordance with the Accomplishment Instructions of 

Boeing Alert Service Bulletin 767-38A0073, dated November 12, 2013". 

Paragraph (i) reads fine.