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DEPARTMENT OF TRAi'lSPORTATION Federal Aviation Administration 14CFR Part 39 (Docket No. FAA-2Q10-0674; Directorate ldentifier 2010-NM-012-AD;



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# ).10-01 RIN 2l20-AA64 ' Airworthiness Directives; The Boeing Company Model 747 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final mle. XJNnp~lU'I'l'f;S ROUTINGS""SOL 

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# 3-1 D SUMMARY: We arc adopting anew ainvorthiness directive (AD) forthe products list above. This AD requires repetitive inspections forcracking inthe body skin around the aft comers ofthe nose wheel well; for certain airplanes, repetitive inspections for cracking inthe skjn splice plate atthe aft comers ofthe nose wheel well; and related investigative and corrective actions ifnecessarJ. This AD also requires repetitive post~ I 

### modificationlDspections for cracking inthe body skin and the skin splice plate; for I 

### certain airplanes, anmspection for steel cross-shaped doublers on the larger aluminum UT'NG SYMElOL 

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### doublers; and corrective action ifnecessary. Thfs AD also requires repetitive surface hi lTlAI",,;«" 

### frequency eddy current (HFEC) inspections ofacertain bulkhead outer chord, skin spli 'IE 

### plate, and outer cbord radius filler forcraCking;lrepetitive detailed inspections for 

# I cracking ofthe bulkhead frame web andbody skin; and corrective actions ifnecessary. 'NITLoJ...SI;K' 

### This ADprovides for optional terminating actiJn for certain repetitive inspections. This DATE 

### AD was prompted by reports ofcracking ofthelfnselage skin and adjacent internal skin ",c""m,oo. splice plate atthe left and right nose wheel well aftcomers, and the outer chord ofthe 'MrlA'""ISl(.; 

### body station (BS) 400 bulkhead. We are issuing this AD to detect and correct cracking ATE 

### the fuselage skin or splice plate, which, togethJ with cracking ofthe bulkhead outer14910-13-PI

modification inspections for cracking in the bod~ skin and the skin splice plate; for certain airplanes, an inspection for steel cross-shaped doublers on the larger aluminum doublers: flnd corrective action ifnecessary. ThiJ AD also requires repetitive surface hi

## '11 frequency eddy current (HFEC) inspections ofaLrtain bulkhead outer chord, skin spl platc. and outer chord radius filler for cracking; iepetitive detailed inspections for crackmg of the bulkhead frame web and body skin; and corrective actions ifnecessary 

# j~/2.../16 This AD provides for optional tcrminat1l1g actioj for eertall~ repetltlve inspectIons Tl:l

# ,~:,:=:~a()c AD was prompted by reports of crackmg ofthe uselagc Skilland adjacent Internal Skll splice plate at the Ic-ft and right nose wheel well aft corners, and the outer chord ofthe ~n: body station 

### (BS) 400 bulkhead. We are issuing ~hiSAD to detect and correct crackin~ 

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RlN 2120·AA64 Airworthiness Dire.ctives; The Boeing Compan~ Model 747 Airplanes AGENCY: r~ederalAviation Adm.inistration 

# (F1JAJ, DOT. ~I;; $r OOL ACTION, Final cu1e. 

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## fif 'N",ll.S{S:G SUMMARY: We are adopting a new airworthiness directive (AD) for the products list .,..~ ~S " 

### <1 .)".)" above. This AD requires repetitive inspections forcracking in the body skin around the l' ~ 

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# all anes, repetitIve InspC,CllOns lor crocking in the skin splice plate at the all cornerslofthe nose •.. vheel well; a.ndrelated investigative and corrective actions ifnecessary. This AD also requires repetitive poStFederal Aviation Administration 14eFR 

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(Docket No. FAA-20JO-0674; Directorate Iden1ifier 2010-NM-012-AD; Amendment 39-**; AD 2010-**-HI

lhe fuselage skin or splice plate, which, together with cracking ofthe bulkhead outer[4910-13-PJ DEPARTMENT OF TRANSPORT AnON

modification inspections for cracking inthe body skin and the skin splice plate; for certain airplam:s, an inspection for steel cross~s~aped doublers on the larger aluminum d bl d ' "f 'J'I I AD I ' , , 'I ' 

### '1" I au ers; an correctIve actlOn I necessary. l1F a so reqUIres rcpetmve surface ll) 1 \~All.:? ounUG sy frequency eddy current (HFEC) inspections of acertain bulkhead outer chord, ski.nspl e aft comers oflhe nose wheel well; for certain 

### aitlane;;, repetitive inspections for cracking inthe skin splice plate at the aft corners ofthc nose wheel well; and related investigative and corrective actions ifnecessary. This AD also requires repetitive- post- [Docket No. FAA-20.10-0674; Directorate Identi.fier 2010-NM-012-AD; Federal Aviation Administration 14CFR Part 39

Amendment 39-**; AD lOlO-*"'-**} RIN 2120-AA64 Aim"orthincss Directi\'Csj The 130cingCompa~yModel 747 Airplanes I ACENCY: Federal Aviation Administration (FAA 

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### 4Ailrd1.1J5 fJ1 ""'~oc:; SUMl\'1ARY: We arc adopting anew airwonhiness directive (AD) forthe products list 

### I'Los tlUt h above. This AD requires repetitive inspections for cracking in the body skin around the
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plate, and outer chord radius filler forcracking; repetitive detailed inspections for 

# " cracking ortlle bulkhead frame web and body skin; and corrective actions ifnecessary 

## I cum", sr.,.,," This AD provides for optional terminating actiJnj for certain repetitive i.nspections. Tbi

_ AD was prompted by reports of c.raeking ofthe fuselage skin and adjacent internal skil ""'LA\.>ISI<:: splice plate at the left and right nose wheel well

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. 'l body station (BS) 400 bulkhead. We arc issuin~ this AD IQ delecl and correct crackin~ 

### 8r'~",",,-:>o. Lheluselage skin 0' splice plate, which, togethl with cracking of the bulkhead outer14910-I3-P] DEPARTMENT OF TRANSPORT AnON Federal Aviation Administration _'JNCU""""';{5 OU""G~'''''rn 14eFR Part 39 IDocket No. FAA-2010-0674j Directorate Ide1tifier 2010-NM-0I2~AD; Amendment 39-**; AD 2010-**-**1 RIN 2120-AA64 

# I Ain-.'orthiness Directives; The Boeing Company Model 747 Airplaues AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: final rule. 

# I SUMMARY: We are adopting anew airworthiness directive (AD) for the products lisL I above. This AD requires repetitive inspections 

# fFr cracking in the body skin around the aft comers ofthe nose wheel \".-ell; for certain airplanes, repetitive inspections for crackin.g Inthe skin splice plate at the aft

# comer orthe nose wheel well; and related investigative and corrective actions ifnecessary. This AD also requires repetitive postmodification inspections forcracking inthe bO

# I Y skin and the skin splice plate; for certain airplanes, an inspection for steel cross-shaped doublers on the larger aluminum 

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doublers; and corrective action ifnecessary_ This AD also requires repetitive surface hi ' frequency eddy current (HFEC) inspections of

# lcertain bulkhead outer chord, skin spli :'~

""" 5>><ilOl plate, and outer chord radius filler forcracking; repetitive detailed inspections for ,,"eking ofthe bulkhead [mmc web and bopy lk;n; and cOiTecl;ve aelions ;fnecessary This AD provides for optional terminating action for certain repetitive inspections. Th" AD was prompted by reports ofcracking Oflhi fuselage skin and adjacent Internal ski splic.eplate at the left and right nose wheel well aft comers, and the outer chord oftile body station (BS) 400 bulkhead. We are issuiJg this AD to detect and correct crackin 

# I OI!Tl"G 5'"Mt>Ql the fuselage skin or splice plate, which, together with cracking ofthe bulkhead outer14910-13-PJ DEPARTMENT OF TRANSPORTATION

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# An' doublers: and corrective action ifnece-ssary. This AD ~llsorequires repetitive surface hi r ~ frequency eddy current (HFEC) inspections 

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1l10dilic(llioninspections for cr(lcking in lhe body skill and the skin sphcc plate; for certain airplanes. an inspection for steel eross-JhapCd doublers on the larger aluminum AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. 

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Airworthiness Directives; The Boeing Company Model 747 Airplanes



# an comers ofthe nose wheel well; for cenain airplanes, repclitive inspections for crack1ng inthe skin splice plate at the aft cornej·s ofthe nose wheel well; and related SUl\1MARY: We arc adopting a new airworthiness direelivc (AD) for the products list IDockl~fNo. FAA-ZOIO-0614; Directorate ldc'rtifier 2010-NM-012-AD; Amendment 39-**; AD 2010-H

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plate, and outer chord radius filler forcr~lckinl; repetitive detailed inspections for 

# IJJf!:,t -at:) cracking ofthe bulkhead fr<lmcweb and bopy skin; and corrccllve aclions ifnecessary ",iE--- This AD provides for optional tcnninating action for cenain rcpeliti\"e inspections. Thi' 

# I "","'Hr. """')1 1\0 was proll1pted by reports ofcracking oft11cfuselage skin and adjacent intcma! skil

### """.tS:"'~ splice plate at the lefl:and right nose wheel \•... ell an comers, and the outer chord ofthe 

### I ·'1 body station (8S) 400 bulkh.cad. We are iSfiuirg this AD to detect and correct c.rackill~,~"'.:;~""'" the fuselage skin or splice plate, which, together with cracking of the bulkhead outer