## Comments in Response to FAA Final Rule; Request for Comments Do c ket No.: FAA-2016-3699 Directorate Identifier : 2015-NM-1 09-AD Comments have been recei ved in response to: 

### "Fi nal rul e; req u est for co mment s," Airworthiness Directive (AD) Docket FAA-2 016-3699 , Dir ectorate Identifier 2015-NM-109- AD. Please r ev iew these com ment s to determin e if add itional action is wan-anted. Once you have made you r determi nation , please check the appropriate response , below. Include additional information following the appropriate response , if necessary. Then type in yo ur nam e and date in the s paces provided , and this return this fo rm to: 9-ANM-114-ADWorksheets. The FAA has reviewed comment(s) related to FAA AD Docket FAA-2 016-3699 , received from Boe ing.

_ ../_ The se comments h ave not been found to contain any i nformation to wanant r e consideration or revision of this AD . These comments hav e been found to contain information that warrants consideration of 

### -- - additional regulatory action. 

### (SEE AD Manual FAA-IR-M-8040.JC , page 57, 

### paragraph 6.a., FOR ADDITIONAL ACTION.) Comments # l and #2: Boeing r equested that we change the wordi ng of the AD to reference 

### the entries inc01porated into the February 2015 rev ision ofthe Line Number Spec ific Airworthi ness Lim itation s (AWL LNS ) document , instead of referencing 

### the document dated Febru ary 2015. Boeing also requested that we indicate that AMOCs per paragraph (h) are not necessary for future revisions of the document , if the revision s do not affect the applicab le entr i es. Bo e ing stated that the A WL-LNS docum e nt will be updated periodically , and the cunent wording could trigger the need for an AMOC in the future , even if the e ntries applicable to the AD are unch anged. Boeing a lso stated that it is likely that when the inspections or tenninat ing actions prescribed by t h e A WL-LNS i s accom pli s hed , the revisi o n date will h ave been changed , w hich could trigger the need fo r an AMO C. FAA Respon se : Pa rag r aph (g) of this AD r equires th at the affected ope r ators revi se the ir maintenance or in s pection pro g ram to incorporate the applicable inspection requirement specified in the AWLLNS document , w ithin 30 days of the AD effective date. T he A WL-LNS document datedFebruary 2015 was sti ll current at the end of the required compliance time (30 days after the AD effect ive date of March 9 , 20 16). When the time comes to accomplish the inspectio ns o r terminating actions , the operators may use the A WL-LNS document dated February 2015, as required by this AD and already incorporated into thei r maintenance program. If they choose instead to use a later revision to the A WL-LNS document , they may request an AMOC at that t ime in accordance w ith paragraph (h) of the AD. It i s not necessary to make the s uggested change. However , we w iII make note of this suggestion for possible use in fut ure ADs . Comment # 3: Boeing requested that paragraph (g) indicate that tenninating action may be completed as prescribed in the AWL-LNS. FAA Response : Paragraph (g) of this AD req uires that the affected operators revise their maintenance or inspection program to incorporate the applicable in spection requirement specified in th e AWL LNS docum ent. The terminating action is specified as part ofthe inspection requirement in the A WL-LNS document. Therefore, it is not necessary to repeat that information in the AD . Comment #4: Boeing requested to remove the wo rd " other" from the statement under the FAA's Determination that " We are issuing this AD because we evaluated all the relevant information and determined that the unsafe condition described previous l y is likely to exist or develop in other products of the same type design." Boeing stated that the unsafe condition was lim ited to two specific lin e numb ers, and is not li kely to develop in other products of the same type design, i.e., the entire 

### 787-8 fleet. FAA Response: This wording in this statement is taken directly from Title 14 ofthe Code ofFederal Regulations (14 CFR) , §39.5 , "W hen does FAA issue airwo rthin ess directives? " Paragraph (c) ofthe AD states that the AD is appl icable to Model 

### 787-8 a irplan es having two specific line numbers. Therefore , it is not necessary to make the suggested change. Comment #5 : Boeing suggested fixing the typographical e rro r in paragraph (hX 1 ), if making other r ev is i ons to the AD . FAA Response: We regret the typog r aphical error , but will not be revising the AD to coiTect it. The Seattle Aircraft Certification Office is correctly ident ifi ed in seve ra l other places in the AD , including paragraph (h)(3) and the email address listed in paragraph (h)(l). 2TY. ed N ame: 1 1..\t:L-f\NI E. \J1ot..t::IJ£ Date:



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### S ubject: Commen t s, IAR Docket No . F AA -2016-3699 (D irectorate Id en tifier 2015 -NM- 109-AD) : Airworthin ess Limitation for R epetitiv e In s pec tion s of the Web Fasten e r Holes in the Overwin g Flex -Tees , Airp lan e Model 787 Boeing ha s reviewed the s ubj ect IAR and provides th e enclo sed co mm e nt s. Very tntly yours,
K. R. Guiley Manager , Continued Airwo rth iness Twin A is le Programs B-H2 10, M/ C OA-19, (425) 266 -56 97 FAX: (425) 342-1058 LAT Enclosure: Comment. , 3 pages

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### Boeing Prop r ietary Enclosure to B-H21 0-16-00161 Page 1 of 3 

### March 15 , 2016 787Airframe-16 - 00 1 Boeing Comments on IAR Docket No. FAA-20 16-3699 (Directorate Identifier 20 1 5-NM-1 09 -AD) 

### Comment# !

What doe s the co mme nt e r r eques t ?

H

ow i s the requ es t j u s ti fie d ?
L is t parag raph s that chang e ; describe ( nonobv ious ) chan ges . 

# I Revise wording that specifies the revision level of the Boeing 787 j 

### Airworthiness Limitations- Line Number Specilic, 

### DO II 2009-03-02, dated

Februmy 2015, '' .. . revise the maintenance or inspection program, as applicable, to incorporate the applicable inspection requirement identified in paragraphs 

# I

(g)( I ) 

### and (g)(2) of this AD, as spec i ficd in appl i cable entr i es incorporated in the February 2015 revision of Boeing 787 Airworthiness Limitations-Line

. Number Specific, 

### DO II 2009-03-02 , dated Februal) ' 2015 . The initial 

# I compliance time for the tasks is at the applicable time specified in app li cable

. entries incorporated in the February 20 15 revision of Boeing 787 

# IAirworthiness Limitations-Line Number Specific, 

### DO II 2009-03 - 02 , dated

. Februal) ' 20 15 . 1 

### I (I) For the airplane having line number 78: Principal Structural Element 57 - : I0-06a

_ MRB9, .. Overwing Flex -Tee - Web Fastener Holes . '' 

## I (2) For the airplane having line number 82 : Principal Structural Element 57- 

### I t 0-06a MRB I0, · ·Overwing Flex- Tee-Web Fastener Holes . ""

The AD specifies the AWL-LNS document dated February 2015 . The AWL-LNS is a document that will be periodically updated with new revisions unrelated to the entries specified in the AD. It is likely that when the inspections or terminating action prescribed by the AWL-LNS is accomplished, the revision date will have been changed, which could trigger the need for an AMOC (to the new revision, even though the entries applicable to the AD are unchanged) . 

### I I

# I(g) I



### Page 2 of4 ECCN- 9E991 NO LICE N SE IS REQU I RED FORTH E DISSEM I NATION OF THE COMMERC I AL I N FOM-IATlO N CONTA I NED H ERE I N TO FORE I G N PERSONS OTB ER THAN THOSE FROM OR I N TERRORIST SUPPORTING COUNTRIES ID E N T I F l ED IN THE EAR. I T I S TBE RESPO N SIBILITY OF THE IND I V I DUAL I N CO N TROL OF TH I S DATA TO ABIDE BY U.S. EXPORT LAWS.Boeing Propri etary Encl o s u re to 8 -H2 1 0-1 6 - 001 6 1 Page 2 of 3 M arch 1 5 , 201 6 787 Air frame- 1 6-001 Bo ei ng Com m e nts on IAR Docket No . FAA-2016-3699 ( Directorate Identi f ier 20 1 5- NM-1 09-AO) [con t.] Comment # 2 What does t h e com me n ter requ est?

How is the re q u est j usti fie d ?
List p aragraphs that change; desc ri be ( no nobv i o us) c han ges . Comment#3

What does the commenter reques t ?

How is the request justified? List paragraphs r har change; desc r ibe ( n o nobvious) changes. ' Supplement wording to indicate "AMOCs per paragraph (h) are not required 1 for future revisions of787 Airworthiness Limitations- Line Number

. Specific, DO I IZ009-03-02, dated February 2015 if the revisions do not ' affect content appl i cable to 57-1 0-06a MRB9 or 57 - 1 0-06a M RB I0." ; The AD specifies the A WL-LNS document dated February 2015 . The

AWL - LNS i s a document that will be p er io d ically updated w i th n ew rev isions unrelated to the entries spec ified in the AD. lt is like ly that when the inspections or terminating act ion prescribed by the A W L -LNS is accomplished, the revision date w ill have been changed, wh i ch could trigger the need for an AMOC (fo r the new revision , even though the entries : applicab le to the AD are u nchanged). ' : (g) 

# I Supplement paragraph (g) with statements indicating tenninat ing action can 

# Ibe completed as prescribed in the AWL - LNS (per Boeing Service Bulletin

B787 8 1205-SB 5700 16-00-00 I) as an a lternative to the app l icable I inspection requ i rement. Proposed wording is consisten t w i th the app l icable : notes in the AWL - LNS :

I " The 57 - l0-06a_MRB9 inspection i s not required i f airplane retrofit has 

# I been accomplished in accordance w ith the tenn inat ing action defined in

Boeing Service Bulletin B787 81205 - SB 570016-00-001 prior to 16 ,000 I flight cycles. I I : The 57-1 0-06a

_ MRB 10 inspection is not required i f airplane retrofit has been accomplished in accordance with the te1minating action defined in Boeing Service Bulletin B787 81205 - SB 570016 - 00 -00 I prior to 7 , 000 flight • cycles."

Potential retrofit terminating action for the AD prescribed in the AW L-LNS is not expl icitly mentioned in the AD. I I : (g) '
P ag e 3 of 4 EC CN • 9E9 91 NO LI C ENSE lS R EQ UIR ED FO R THE DISSE .\ U NATIO N O F TH E C O MME RCIA L INFOR M ATIO N CONT AIN ED HER EIN TO FOREIGN PERSO NS OTH E R TH AN T HOS E FRO M OR I N T E RRORIS T SU PPORTING CO UN TRI ES IDE N T I FI ED I N TH E EA R . I T IS T H E R ES PO !'iS I BI LITY O F TH E I NDI VID UAL I N C O NT RO L OF THI S DA TA T O A BID E BY U. S . EX PORT LAWS .

### Boeing Proprietary Enclosure to B-H210-16-0016 1 Page 3 of 3 

### March 15,2016 787 Airframe-16-00 I Boeing Comments on IAR Docket No. FAA-2016 -3699 (Directorate I den ti f ier 2015-NM-109-AD) [cont.] 

### Comment# 4 What does the co mmenter request ? How i s the request justified? Li s t paragraph s th a t c hange; d escr ib e ( n o nobv i o u s) change s. 

### Comment# 5 What does the co mm e nte r req u est? H ow is the request justified? List paragraph s that change : describe (non obvious) chan ges. 

### Revise wording to strike the word ''other.. from the following statement: "We are issuing this AD because we evaluated all the relevant information and determined the unsafe condition described previously is likely to exist or develop in etllef 

### products of the same type design." The unsafe condition resulted from a quality escapement applicable to two specific line numbers, and therefore, is not likely to develop in OTHER products of the same type design (i.e . the entire 787-8 lleet). Docket wording in section titled "FAA's Detennination"
I If making other revisions to the AD. fix the typographical error in the

' 

### following statement:

"(h) Altemative Methods of Compliance (AMOCs) (I) The Manager,

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### Aircraft Certification Ortice (ACO), ... " clarity/correctness (h)

Page 4 of4 E CCN- 9E99 1 NO LI CE N SE I S R EQU IR E D FOR Til£ DISSEMI NATIO N OF THE C OI\IMERCIAL INF ORMATION CON TAI N ED HERE I N TO FORE IG N PER SONS OT II ER TII AN THOSE FROM O R I N T ERROR I S T SU PPORTING COUNTR I ES IDENTIFIED I N TH E EA R. IT IS THE R ESPONS IBILIT Y OF THE I N DIVID UAL I N C ONTROL OF TH I S DATA TO AB ID E BY U.S . EXPORT LAWS.