### Regulatory Evaluation
Docket No. FAA- Directorate Identifier: 

### -AD



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### clwngedcell. 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 PassengerCompartmentPotable Water ) 

### System Coupling 

### 33.0 $500 139 ' ' 

### Inspection and Replacement (Part l) I \ 

### Forward PassengerCompartmentPotable Water System Coupling 4.2 $500 

### 139 1 ' Inspection and Replacement (Part 2) 

## I Forward PassengerCompartmentPotable Water System Coupling- 247.0 

### $500.0 

## ? 139,_ 0 Spray Shroud Installation (Part 3)



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## l I l The known number ofproducts in compliance: Total Costs ofcompliance 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)

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### Special considerations for Economic Analysis (Use thisfield to explain anything in the Estimated Costs table that was assumedor might notbe obvious. Thisfield can also be usedto explain warranty costs): 

### Executive Order 12866:

**~** Could the AD 

### be considered a "significant regulatory

**action"? ~**  *Explanation: 

### DOTRegulatory 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 ofsmall entities? Explain for eithera 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 oftransportation? • 

### 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 Ifinally got the reply back from Boeing: For the Cost section: 1) Please verify the hours for installing the spray shrouds (is 247 hours and $500 for parts correct?) 

### It 

### varies from position to position, but on average, assumejust 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 hourto 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.